WO2010047202A1 - Elevator safety device - Google Patents
Elevator safety device Download PDFInfo
- Publication number
- WO2010047202A1 WO2010047202A1 PCT/JP2009/066403 JP2009066403W WO2010047202A1 WO 2010047202 A1 WO2010047202 A1 WO 2010047202A1 JP 2009066403 W JP2009066403 W JP 2009066403W WO 2010047202 A1 WO2010047202 A1 WO 2010047202A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- car
- light
- door
- foreign object
- light projecting
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
- B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
Definitions
- the present invention relates to an elevator safety device, and more specifically, to an elevator safety device that detects foreign matter present at a passenger entrance using a light beam.
- an elevator for example, when a pet such as a dog is connected to a string and gets on the car, if a person enters the car while the pet remains on the landing floor, the string is stretched across the inside of the car and the landing floor. In this state, the car door and the landing door are closed, and the car is raised or lowered. As a result, a person's hand is strongly pulled by the string connected to the pet, and in some cases, the wrist or the like may be seriously damaged.
- the elevator car door is provided with a safety shoe frame that protrudes from the end surface in the closing direction and moves relative to the car door.
- the safety shoe frame collides with a person or a foreign object during the process of closing the car door.
- a force acts on the safety shoe frame the car door and the landing door are reversed from the closing operation to the opening operation.
- the car door and the landing door are reversed from the closing operation to the opening operation.
- Various methods have been proposed as a foreign object detection method using a light beam (see, for example, Patent Documents 1 and 2).
- An object of the present invention is to provide an elevator safety device that can prevent a light beam from being looked into.
- a first elevator safety device is an elevator safety device having a pair of car doors that move in a direction approaching and separating from each other to open and close the entrance and exit, and emits a light beam across the entrance and exit.
- a light projecting means a light receiving means for detecting a light beam emitted from the light projecting means, a foreign object detection means for generating a foreign object detection signal when detection of the light beam by the light receiving means is interrupted,
- Control means for controlling the opening / closing operation and the light beam emitting operation by the light projecting means.
- the control means stops the light projecting means from emitting light when the car doors are fully open, and emits light to the light projecting means at the start of the car door closing operation or during the car door closing operation. Start operation.
- the emission operation by the light projecting means is stopped and the foreign object detection operation by the foreign object detection means is not performed.
- the emission operation by the light projecting unit is started at the start of the closing operation of the car doors or during the closing operation of the car doors, and the foreign object detection operation by the foreign object detection unit is started.
- the light beam emitted from the light projecting means is incident on the light receiving means from the start of the foreign object detection operation until the car doors are fully closed. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated.
- the light beam emitted from the light projecting means is caused by the foreign object in the process from the start of the foreign object detection operation until the car doors are fully closed. Since it is blocked, detection of the light beam by the light receiving means is interrupted, and as a result, a foreign object detection signal is generated.
- the light projecting means stops the emission operation to prevent the light beam from being looked into in this state. I can do it.
- control means causes the light projecting means to stop the emission operation during the normal opening operation in which both the car doors are opened from the fully closed position. This prevents the light beam from being looked into during the normal opening operation of the car doors.
- control means reverses both the car doors from the closing operation to the opening operation when the foreign object detection signal is generated by the foreign object detection means in the process of closing both the car doors.
- the light projecting means stops the emission operation.
- the foreign object detection signal is generated while the car doors are closed as described above, and as a result, the car doors are reversed from the closing operation to the opening operation. At this time, the emission operation by the light projecting means is stopped. Thereby, it is possible to prevent the light beam from being looked into during the reversing opening operation of the car doors.
- the person's head or shoulder is As a result, the car doors are reversed from the closing operation to the opening operation, and the emission operation by the light projecting means is stopped. Therefore, it is impossible to look into the light beam emitted from the light projecting means during the closing operation of the car doors, and it is possible to prevent the light beam from being looked into even during the closing operation of the car doors.
- a second elevator safety apparatus is an elevator safety apparatus having a pair of car doors that move in a direction approaching and separating from each other to open and close the entrance and exit, and emits a light beam across the entrance and exit.
- a light projecting means a light receiving means for detecting the light beam emitted from the light projecting means, a foreign object detection means for generating a foreign object detection signal when detection of the light beam by the light receiving means is interrupted, and both car doors Closed position detecting means for detecting that the door has been closed to a predetermined closed position, and control means for controlling the opening / closing operation of both car doors and the light beam emitting operation by the light projecting means.
- control means starts until the car doors are closed to the predetermined closed position after the car doors are fully opened and the car doors are closed.
- the light projecting unit stops the light emitting operation, and the light projecting unit starts the light emitting operation when the closing position detecting unit detects that both car doors are closed to the predetermined closed position.
- the car doors are fully opened and the closing operation of the car doors is started until the closing position of the car doors reaches a predetermined closing position.
- the emission operation by the light projecting unit is stopped, and the foreign object detection operation by the foreign object detection unit is not performed.
- the predetermined closed position is set to a position where the width between the end faces in the closing direction of the two car doors to be in contact with each other is such that a person's head and shoulders do not enter.
- the light beam emitted from the light projecting means is incident on the light receiving means from the start of the foreign object detection operation until the car doors are fully closed. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated.
- the light beam emitted from the light projecting means is caused by the foreign object in the process from the start of the foreign object detection operation until the car doors are fully closed. Since it is blocked, detection of the light beam by the light receiving means is interrupted, and as a result, a foreign object detection signal is generated.
- the emission operation by the light projecting means is stopped to prevent the light beam from being looked into in this state. I can do it.
- the light emitting means starts the light emitting operation when the car doors are closed to the predetermined closing position. It is physically impossible to look into the light beam with a shoulder or shoulder, and it is possible to reliably prevent the light beam from being looked into even during the closing operation of the car doors.
- control means causes the light projecting means to stop the emission operation during the normal opening operation in which both the car doors are opened from the fully closed position. This prevents the light beam from being looked into during the normal opening operation of the car doors.
- control means reverses both the car doors from the closing operation to the opening operation when the foreign object detection signal is generated by the foreign object detection means in the process of closing both the car doors.
- the light projecting means stops the emission operation.
- a foreign object detection signal is generated in the process of closing both the car doors from the predetermined closed position as described above. At this time, the emission operation by the light projecting means is stopped. Thereby, it is possible to prevent the light beam from being looked into during the reversing opening operation of the car doors.
- a third elevator safety apparatus is an elevator safety apparatus having a pair of car doors that move in a direction approaching and separating from each other to open and close the entrance and exit, and emits a light beam across the entrance and exit.
- a light projecting means a light receiving means for detecting a light beam emitted from the light projecting means, a foreign object detection means for generating a foreign object detection signal when detection of the light beam by the light receiving means is interrupted,
- Control means for controlling the opening / closing operation and the light beam emitting operation by the light projecting means. Then, the control means causes the light projecting means to execute an emission operation when the car doors are fully opened, and stops the emission operation to the light projecting means when a foreign object detection signal is generated by the foreign object detection means in this state.
- the light emission means performs the emission operation while the both car doors are fully open, and the foreign object detection operation is performed by the foreign object detection means.
- the light beam emitted from the light projecting means enters the light receiving means. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated.
- the light beam emitted from the light projecting unit is blocked by the foreign object, so that the detection of the light beam by the light receiving unit is interrupted, and as a result, the foreign object detection signal is Generated.
- the emission operation by the light projecting means is stopped.
- the person's head or shoulder is detected as a foreign object.
- the emission operation by is stopped. Therefore, it is impossible to look into the light beam emitted from the light projecting means when the car doors are fully opened, and it is possible to prevent the light beam from being looked into when the car doors are fully opened.
- the control means when the foreign object detection signal is generated by the foreign object detection means in a state where both car doors are fully opened, the control means extends a time during which both car doors should be maintained in the fully open state. This prevents the car door from colliding with the person's head and shoulders when a person tries to look into the light beam by putting his head or shoulders into the entrance and exit just before the closing of the car doors starts. Can be prevented.
- control means stops the light emitting means in the fully open state of both the car doors, and then when the time for maintaining the both car doors in the fully open state expires.
- the light means starts the emission operation and the foreign matter detection signal is generated by the foreign matter detection means
- the light projection means stops the emission operation and extends the time to keep both the car doors fully open.
- no foreign object detection signal is generated, the closing operation of the car doors is started.
- the foreign object detection signal is generated and the light projecting means because the foreign object exists at the entrance / exit when the car doors are fully opened or the person is looking into the light beam. Then, when the time for keeping both the car doors in the fully open state expires, the emission operation by the light projecting means is started.
- the foreign object detection signal is generated again, it is estimated that the foreign object remains at the entrance / exit or that the person continues to look into the light beam. Is stopped again and the car doors are kept fully open.
- the foreign object detection signal is not generated, the closing operation of the car doors is started while the emission operation by the light projecting unit is continued.
- control means causes the light projecting means to stop the emission operation during the normal opening operation in which both the car doors are opened from the fully closed position. This prevents the light beam from being looked into during the normal opening operation of the car doors.
- control means causes the light projecting means to execute an emission operation during the closing operation of the car doors, and a foreign object detection signal is generated by the foreign object detection means in the process of closing the car doors.
- the car doors are reversed from the closing operation to the opening operation, and the light projecting means stops the emitting operation during the reversing opening operation of the car doors.
- the light beam emitted from the light projecting means enters the light receiving means until the car doors are fully closed. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated.
- the light beam emitted from the light projecting means is blocked by the foreign substance in the process until the car doors are fully closed. The detection of the beam is interrupted, and as a result, a foreign object detection signal is generated.
- the foreign object detection signal is generated while the car doors are closed as described above, and as a result, the car doors are reversed from the closing operation to the opening operation. At this time, the emission operation by the light projecting means is stopped. Thereby, it is possible to prevent the light beam from being looked into during the reversing opening operation of the car doors.
- the person's head or shoulders will become foreign objects by the foreign object detection means.
- both the car doors are reversed from the closing operation to the opening operation, and the emission operation by the light projecting means is stopped. Therefore, it is impossible to look into the light beam emitted from the light projecting means during the closing operation of the car doors, and it is possible to prevent the light beam from being looked into during the closing operation of the car doors.
- the control means includes: Forced door closing means for forcibly closing the car doors regardless of whether or not a foreign object detection signal is generated by the foreign object detection means; Informing means for informing execution of the forced door closing operation before or during execution of the forced door closing operation by the forced door closing means.
- control means further includes Car control means for starting travel of the car after completion of the forced door closing operation by the forced door closing means;
- Car control means for starting travel of the car after completion of the forced door closing operation by the forced door closing means;
- Second informing means for informing.
- the foreign object when a person is mischievous or deliberately puts a foreign object (for example, a string-like foreign object) on the platform and the landing floor, the foreign object is moved to the car after the forced door closing operation is completed. It is possible to prevent the occurrence of an accident in which the car starts to run while being sandwiched between the door and the landing door.
- a foreign object for example, a string-like foreign object
- a fourth elevator safety device is an elevator safety device including at least one car door that opens and closes a passenger door by moving in a direction approaching and separating from a door stop frame.
- Projecting means for emitting a light beam crossing the light source, light receiving means for detecting the light beam emitted from the light projecting means, and foreign object detection means for generating a foreign object detection signal when detection of the light beam by the light receiving means is interrupted
- control means for controlling the opening / closing operation of the car door and the light beam emitting operation by the light projecting means.
- the control means causes the light projecting means to stop the emission operation in the fully opened state of the car door, and the light emission means operates to emit light at the start of the car door closing operation or during the car door closing operation. To start.
- the emission operation by the light projecting means is stopped, and the foreign object detection operation by the foreign object detection means is not performed.
- the light projecting means starts the emission operation
- the foreign object detection means starts the foreign object detection operation.
- the light beam emitted from the light projecting means is blocked by the foreign object in the process from the start of the foreign object detection operation until the car door is fully closed. Therefore, detection of the light beam by the light receiving means is interrupted, and as a result, a foreign object detection signal is generated.
- the light emitting means stops the emission operation to prevent the light beam from being looked into in this state. I can do it.
- control means causes the light projecting means to stop the emission operation during the normal opening operation in which the car door is opened from the fully closed position. This prevents the light beam from being looked into during the normal opening operation of the car door.
- control means reverses the car door from a closing operation to an opening action when a foreign object detection signal is generated by the foreign object detection means in the process of closing the car door, During the reverse opening operation, the light projecting means stops the emission operation.
- a fifth elevator safety device is an elevator safety device comprising at least one car door that moves in a direction approaching and separating from a door-to-door frame to open and close the entrance.
- Projecting means for emitting a light beam crossing the light source, light receiving means for detecting the light beam emitted from the light projecting means, and foreign object detection means for generating a foreign object detection signal when detection of the light beam by the light receiving means is interrupted
- a closing position detecting means for detecting that the car door is closed to a predetermined closing position, and a control means for controlling the opening / closing operation of the car door and the light beam emitting operation by the light projecting means.
- control means starts from the fully opened state of the car door and the closing operation of the car door until the closing position detecting means detects that the car door is closed to the predetermined closing position.
- the light projecting unit stops the light emitting operation, and the light projecting unit starts the light emitting operation when the closing position detecting unit detects that the car door is closed to the predetermined closed position.
- the light is projected from the fully open state of the car door and from the start of the car door closing operation until the car door closing position reaches a predetermined closing position.
- the emission operation by the means is stopped, and the foreign object detection operation by the foreign object detection means is not performed.
- the predetermined closed position is set to a position where the width between the end face of the car door in the closing direction and the door stop frame is a width that does not allow a person's head or shoulder to enter.
- the light beam emitted from the light projecting means is incident on the light receiving means until the car door is fully closed after the foreign matter detection operation is started. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated.
- the light beam emitted from the light projecting means is blocked by the foreign object in the process from the start of the foreign object detection operation until the car door is fully closed. Therefore, detection of the light beam by the light receiving means is interrupted, and as a result, a foreign object detection signal is generated.
- the light emitting means stops the emission operation to prevent the light beam from being looked into in this state. I can do it. Also, during the car door closing operation, the light emitting means starts the light emitting operation when the car door is closed to the predetermined closing position. It is physically impossible to look into the light beam by putting the light in, and it is possible to reliably prevent the light beam from being looked into during the car door closing operation.
- control means causes the light projecting means to stop the emission operation during the normal opening operation in which the car door is opened from the fully closed position. This prevents the light beam from being looked into during the normal opening operation of the car door.
- control means reverses the car door from a closing operation to an opening action when a foreign object detection signal is generated by the foreign object detection means in the process of closing the car door, During the reverse opening operation, the light projecting means stops the emission operation.
- the foreign object detection signal is generated in the process of closing the car door from the predetermined closed position as described above, and as a result, the car door is reversed from the closing operation to the opening operation. At this time, the emission operation by the light projecting means is stopped. Thus, it is possible to prevent the light beam from being looked into during the reversing opening operation of the car door.
- a sixth elevator safety device is an elevator safety device comprising at least one car door that moves in a direction approaching and separating from a door stop frame to open and close the entrance.
- Projecting means for emitting a light beam crossing the light source, light receiving means for detecting the light beam emitted from the light projecting means, and foreign object detection means for generating a foreign object detection signal when detection of the light beam by the light receiving means is interrupted
- control means for controlling the opening / closing operation of the car door and the light beam emitting operation by the light projecting means. Then, the control means causes the light projecting means to execute an emission operation when the car door is fully open, and performs an emission operation to the light projection means when a foreign object detection signal is generated by the foreign object detection means in this state. Stop.
- the emission operation by the light projecting means is executed and the foreign object detection operation by the foreign object detection means is executed with the car door fully opened.
- the light beam emitted from the light projecting means enters the light receiving means. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated.
- the light beam emitted from the light projecting unit is blocked by the foreign object, so that the detection of the light beam by the light receiving unit is interrupted, and as a result, the foreign object detection signal is Generated.
- the emission operation by the light projecting means is stopped.
- the person's head or shoulder is detected as a foreign object, and as a result, the light emitted from the light projection means is emitted.
- the operation will be stopped. Accordingly, it is impossible to look into the light beam emitted from the light projecting means when the car door is fully opened, and it is possible to prevent the light beam from being looked into when the car door is fully opened.
- the control means when the foreign object detection signal is generated by the foreign object detection means in the fully open state of the car door, the control means extends the time for maintaining the car door in the fully open state. This prevents the car door from colliding with the person's head and shoulders when a person tries to look into the light beam with his head and shoulders in the entrance just before the car door closing operation begins. I can do it.
- control means stops the light emitting means in the fully open state of the car door, and after the time for keeping the car door fully open expires.
- the light means starts the emission operation and the foreign object detection signal is generated by the foreign object detection means
- the light projection means stops the emission operation and extends the time for keeping the car door fully open.
- the foreign object detection signal is not generated, the car door closing operation is started.
- the foreign object detection signal is generated by the light projecting means because the foreign object exists at the entrance / exit when the car door is fully opened or the person is looking into the light beam.
- the emission operation by the light projecting unit is started when the time for keeping the car door fully opened is expired.
- the foreign object detection signal is generated again, it is estimated that the foreign object remains at the entrance / exit or that the person continues to look into the light beam. Is stopped again and the car door is kept fully open.
- the foreign object detection signal is not generated, the car door closing operation is started while the emission operation by the light projecting unit is continued.
- control means causes the light projecting means to stop the emission operation during the normal opening operation in which the car door is opened from the fully closed position. This prevents the light beam from being looked into during the normal opening operation of the car door.
- control means causes the light projecting means to execute an emission operation during the closing operation of the car door, and the foreign object detection signal is generated by the foreign object detection means in the process of closing the car door.
- the car door is reversed from the closing operation to the opening operation, and the light projecting means stops the light emitting operation during the car door reversing opening operation.
- the light beam emitted from the light projecting means enters the light receiving means until the car door is fully closed. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated.
- the light beam emitted from the light projecting means is blocked by the foreign substance in the process until the car door is fully closed. As a result, a foreign object detection signal is generated.
- a foreign object detection signal is generated in the process of closing the car door as described above, and as a result, the car door is reversed from the closing operation to the opening operation.
- the emission operation by the light projecting means is stopped.
- the person's head or shoulder is detected as a foreign object by the foreign object detection means.
- the car door is reversed from the closing operation to the opening operation, and the emission operation by the light projecting means is stopped. Accordingly, it is impossible to look into the light beam emitted from the light projecting means during the closing operation of the car door, and it is possible to prevent the light beam from being looked into during the closing operation of the car door.
- control means includes: Forced door closing means for forcibly closing the car door regardless of whether a foreign object detection signal is generated by the foreign object detection means; Informing means for informing execution of the forced door closing operation before or during execution of the forced door closing operation by the forced door closing means.
- control means further includes Car control means for starting travel of the car after completion of the forced door closing operation by the forced door closing means;
- Car control means for starting travel of the car after completion of the forced door closing operation by the forced door closing means;
- Second informing means for informing.
- the foreign object when a person is mischievous or deliberately puts a foreign object (for example, a string-like foreign object) on the platform and the landing floor, the foreign object is moved to the car after the forced door closing operation is completed. It is possible to prevent the occurrence of an accident in which the car starts to run while being sandwiched between the door and the landing door.
- a foreign object for example, a string-like foreign object
- the light beam can be prevented from being looked into.
- FIG. 1 is a front view showing a fully opened state of both car doors of an elevator according to the present invention.
- FIG. 2 is a front view showing a fully closed state of the car doors of the elevator.
- FIG. 3 is a perspective view showing a mounting state of the light projecting / receiving unit in the elevator.
- FIG. 4 is a perspective view showing an attachment state of the first reflecting member in the elevator.
- FIG. 5 is a perspective view showing an attachment state of the second reflecting member in the elevator.
- FIG. 6 is a perspective view showing an attached state of the foreign matter intrusion preventing member in the elevator.
- FIG. 7 is a perspective view showing an attachment state of the cleaning tool in the elevator.
- FIG. 8 is a perspective view showing the positional relationship between the first reflecting member and the cleaning tool in the elevator.
- FIG. 9 is a horizontal cross-sectional view showing an example of the arrangement of light beams when there is overtravel.
- FIG. 10 is a horizontal sectional view showing an example of the arrangement of light beams when there is no overtravel.
- FIG. 11 is a series of horizontal sectional views showing the first half of the string detection operation example.
- FIG. 12 is a series of horizontal sectional views showing the latter half of the string detection operation example.
- FIG. 13 is a series of horizontal cross-sectional views showing the first half of another example of string detection operation.
- FIG. 14 is a series of horizontal sectional views showing the latter half of the string detecting operation example.
- FIG. 15 is a series of horizontal cross-sectional views showing the first half of another example of string detection operation.
- FIG. 16 is a series of horizontal sectional views showing the latter half of the string detecting operation example.
- FIG. 17 is a block diagram showing an electrical configuration of the elevator.
- FIG. 18 is a flowchart showing a control procedure executed in the elevator according to the first embodiment.
- FIG. 19 is a partial view of FIG.
- FIG. 20 is a flowchart showing a control procedure executed in the elevator according to the second embodiment.
- FIG. 21 is a partial view of FIG.
- FIG. 22 is a flowchart showing a control procedure executed in the elevator according to the third embodiment.
- FIG. 23 is a first partial view of FIG.
- FIG. 24 is a second partial view of FIG.
- FIG. 25 is a front view showing a fully opened state of a car door of another elevator capable of carrying out the present invention.
- FIG. 26 is a front view showing a fully opened state of the car doors of another elevator capable of carrying out the present invention.
- FIG. 27 is a front view showing a fully opened state of both car doors of another elevator capable of carrying out the present invention.
- FIG. 28 is a front view showing a fully opened state of a car door of another elevator capable of carrying out the present invention.
- FIG. 29 is a horizontal sectional view showing a main part of another elevator capable of carrying out the present invention.
- FIG. 30 is a horizontal sectional view showing a main part of another elevator capable of carrying out the present invention.
- the elevator of this embodiment is a center open type elevator having a pair of left and right car doors (2) and (3) for opening and closing the entrance of the car as shown in FIGS.
- the rail (1) is fixed to the frame (102) above the entrance and exit, and the car doors (2) and (3) are suspended from the rail (1) by hangers (21) and (31), respectively, and the lower end of the door Guide shoes (22) and (32) projecting from the part are slidably fitted to the sill (8) to guide horizontal reciprocation.
- a control unit (100) for controlling the opening / closing operation of the car doors (2) (3) is installed on the frame (102).
- a predetermined distance for example, 12 mm
- a light projecting / receiving unit (4) is arranged vertically downward at the upper end position on the separated vertical line, while the first reflecting member (5) is arranged vertically upward at the lower end position on the vertical line.
- the light projecting / light receiving unit (4) is an integral unit of a light projector that emits a laser beam (hereinafter referred to as a light beam) B and a light receiver that detects an incident light beam B.
- a light beam a laser beam
- the light beam emitting operation of the light projecting / receiving unit (4) is controlled by the control unit (100).
- a red semiconductor laser is used as the projector of the light projecting / receiving unit (4), thereby forming a spot having a diameter of 1 to 2 mm.
- the light receiver of the light projecting / light receiving unit (4) does not output a foreign object detection signal when the amount of light received by the incident light beam exceeds a predetermined threshold. On the other hand, when the amount of light received by the incident light beam is below a predetermined threshold, a foreign object detection signal is output.
- the first reflecting member (5) is provided on a horizontal arm portion of an L-shaped arm member (51) projecting from the lower end surface of the left car door (2). It has a reflecting surface that reflects the beam B vertically upward.
- the arm member (51) is accommodated in the groove (81) of the sill (8) in which the guide shoe of the car door (2) is fitted so as to be reciprocally movable.
- the arm member (51) is supported by the left car door (2) via the stay (52) shown in FIG.
- the stay (52) is attached to the car door (2) so that the position of the door opening / closing direction can be adjusted, and the arm member (51) is attached to the stay (52) in the longitudinal direction perpendicular to the door opening / closing direction. It is attached so that its position can be adjusted.
- an accommodation space (30) for accommodating the light projecting / receiving unit is formed in the upper end of the right car door (3) with both the car doors closed.
- a second reflecting member (6) is arranged at the bottom of 30) vertically upward.
- the second reflecting member (6) has a reflecting surface having a predetermined length (for example, 8 mm) extending from the same position as the closing direction end surface (3a) of the right car door (3) to the back of the housing space (30). The light beam from the light projecting / receiving unit that has entered the accommodation space (30) is reflected vertically upward.
- a foreign substance fills a gap formed between the end surface (3a) in the closing direction of the car door (3) and the surface of the sill (8).
- An intrusion prevention member (9) projects downward, and a lower end portion of the foreign matter intrusion prevention member (9) is accommodated in the groove (81) of the sill (8) so as to be reciprocally movable.
- a mounting bracket (72) is fixed to the lower end portion of the right car door (3) at a rear position of the foreign matter intrusion preventing member (9) as shown in FIG. 7, and the mounting bracket (72) is made of a brush.
- the cleaning tool (7) is supported downward. In the process of closing the car doors (2) and (3) to the fully closed position as shown in FIG. 2, the cleaning tool (7) is attached to the first reflecting member (5) disposed on the left car door (2). Clean the surface (see FIG. 8). Thus, the surface of the first reflecting member (5) is always maintained as a good reflecting surface.
- the light projecting / light receiving unit (4) is mounted in a state where the light projecting / light receiving unit (4) is directed vertically downward and the first reflecting member (5) and the second reflecting member (6) are directed vertically upward.
- FIG. 9 shows the light beam in the case where there is a retreat distance of the end face in the closing direction at the fully open position of the car door (2), that is, the overtravel T, with respect to the end face of the entrance / exit column (20) forming the entrance / exit of the car.
- B represents an arrangement example of B, and the light beam B is located outside the width of the entrance and exit during the standby in the door open state shown in FIG. 9 (a), and in the door closed state shown in FIG. 9 (b).
- the light beam B is arranged so as to be located inside the line connecting the edge of the car door (2) and the edge of the safety shoe frame (27).
- FIG. 10 shows an example of the arrangement of the light beam B when there is no overtravel.
- the edge of the car door (2) and the safety shoe are shown. It is located outside the line connecting the edge of the frame (27), and when the door is closed as shown in FIG. 10 (b), the edge of the car door (2) and the edge of the safety shoe frame (27) are connected.
- the light beam B is arranged so as to be located inside the connected line.
- the light beam B emitted from the light projecting / receiving unit (4) in the process in which the car doors (2) and (3) are closed from the fully open state to the state immediately before the fully closed state is the first as long as there is no foreign matter in the path.
- the light enters the reflecting member (5) and is reflected, and the reflected light beam B returns to the light projecting / light receiving unit (4).
- the light projecting / receiving unit (4) is accommodated in a housing space (30 ),
- the light beam B emitted from the light projecting / receiving unit (4) enters the second reflecting member (6) and is reflected, and the reflected light beam B is reflected by the light projecting / receiving unit (4).
- the light beam B emitted from the light projecting / receiving unit (4) in the process in which the car doors (2) and (3) are closed from the fully open state to the fully closed state The light is reflected by the first reflecting member (5) or the second reflecting member (6) and returned to the light projecting / receiving unit (4).
- the light projecting / receiving unit (4) does not generate a foreign matter detection signal when a light beam is detected. Then, the control unit (100) is configured so that the car doors (2) and (3) are closed in the process of closing the car doors (2) and (3) from the fully open state to the fully closed state, unless a foreign object detection signal is generated by the light projecting / receiving unit (4). 2) Continue the closing operation of (3). On the other hand, the light projecting / light receiving unit (4) generates a foreign object detection signal and outputs it to the control unit (100) when the detection of the light beam is interrupted. In response to this, the control unit (100) reverses the car doors (2) and (3) from the closing operation to the opening operation and stops the light projecting / receiving unit (4) from emitting the light beam.
- the control unit (100)
- the car doors (2) and (3) are reversed from the closing operation to the opening operation, and the light projecting / receiving unit (4) is stopped from emitting the light beam.
- FIGS. 11 and 12 show that the car doors (2) and (3) are closed in a state where a string S is stretched between the inside of the car and the landing floor through the central part of the entrance of the car. Represents a series of operations.
- the light beam B gradually approaches the string S.
- FIGS. 12 (a), (b), and (c) the light beam B crosses the string S while the car doors (2) and (3) are closed from the state immediately before the fully closed state to the fully closed state.
- detection of the light beam by the light projecting / light receiving unit (4) is interrupted, so that a foreign object detection signal is generated.
- FIGS. 13A, 13B, and 13C show an elevator in which a safety shoe frame (27) is arranged on the left car door (2), and the left car door (2) and the safety shoe frame (27) come into contact with the car.
- This shows a series of operations when the car doors (2) and (3) are closed in a state where the string S is stretched between the interior and the landing floor.
- FIGS. 13A, 13B, and 13C in the process in which the two car doors 2 and 3 are closed from the fully opened state to the state immediately before the fully closed state, the string S is initially placed with the light beam B and the left car door. Although it is located between (2), the string S moves to the position where it crosses the light beam B as the door-closing operation proceeds, and then both of them as shown in FIGS.
- FIGS. 15 and 16 show an elevator in which safety shoe frames (27) and (37) are arranged on the car doors (2) and (3), respectively, and the left car door (2) and the safety shoe frame (27).
- the string S is initially the light beam B and the left car door. Although it is located between (2), the string S moves to the position where it crosses the light beam B as the door closing operation proceeds, and then both the strings S as shown in FIGS. 16 (a), (b) and (c).
- the light beam B moves to the outside of the string S.
- detection of the light beam by the light projecting / receiving unit (4) is interrupted, so that a foreign object detection signal is generated.
- FIG. 17 shows the electrical configuration of the elevator according to the present embodiment.
- a door drive signal is supplied from the door control device (300) to the door drive motor (301), thereby opening and closing the car doors (2) and (3).
- a rotary encoder (302) is attached to the door drive motor (301), and an encoder pulse signal obtained from the rotary encoder (302) is supplied to the door control device (300).
- the positions of the car doors (2) and (3) are recognized based on the encoder pulse signal, and the door position signal is supplied to the control unit (100).
- the elevator also has a door closing end position detection device (sometimes called CTL) (101) that switches from off to on when both car doors (2) and (3) are fully closed.
- CTL door closing end position detection device
- the on / off signal obtained from the door closing terminal position detection device (101) is provided to the control unit (100) via the door control device (300).
- a door opening / closing command is supplied from the control unit (100) to the door control device (300), whereby the door control device (300) is controlled.
- a laser driving circuit (400) is connected to the light projecting / receiving unit (4), and the laser driving circuit (400) is connected to the control unit (100).
- a laser projection on command and a laser projection off command are supplied from the control unit (100) to the laser drive circuit (400), and the laser drive circuit (400) receives the laser projection on command and receives the laser projection on command.
- supply of the laser drive signal to the light projecting / receiving unit (4) is stopped.
- the light projecting / receiving unit (4) receives a laser drive signal from the laser drive circuit (400) and performs a light beam emission operation.
- the light projection / light reception unit (4) performs the light beam emission operation. Stop.
- the foreign matter detection signal obtained from the light projecting / receiving unit (4) is supplied to the control unit (100) via the laser driving circuit (400).
- FIGS. 18 and 19 show the control procedure executed by the control unit (100).
- step S1 of FIG. 18 the process waits for the door opening completion (fully opened state), and the light projecting / light receiving unit performs. The light beam emission operation is stopped.
- step S2 it is determined whether the door opening time has expired. If no, the process returns to step S1, waits for the door opening completion, and continues the light beam emission stop state.
- step S3 When the door opening time expires and it is determined as YES in step S2, the process proceeds to step S3, and when the reverse door opening is repeated a predetermined number of times N or more by detection of a foreign object, or the door opening waiting time is predetermined. It is determined whether or not any of the cases where the time T is reached. When it is determined NO in step S3, the process proceeds to step S4, the door closing operation is executed at a normal speed (high speed) and the light beam emitting operation by the light projecting / receiving unit is executed, and then the step is performed. In S5, it is determined whether or not a foreign object has been detected.
- step S6 executes the reverse door opening and stop the light beam emission operation by the light projecting / light receiving unit, and then returns to step S1 to complete the door opening. And the light beam emission stop state is continued.
- step S5 when it is determined in step S5 that no foreign matter has been detected, the process proceeds to step S7, and whether or not the door closing operation has been completed based on the on / off signal obtained from the door closing terminal position detection device. If NO is determined, the process returns to step S4 to continue the door closing operation at a normal speed and continue the light beam emission operation. Thereafter, when the door closing operation is completed and it is determined YES in step S7, the light beam emitting operation by the light projecting / light receiving unit is stopped in step S8, and the series of procedures is terminated.
- step S9 the use of a voice guidance system in the car or a display guidance system in the car or at the landing notifies the start of the door closing operation and from the car door. Warning to leave.
- step S10 a forced door closing operation forcibly closing the car door at a low speed regardless of whether or not a foreign object is detected by the light projecting / light receiving unit is performed while sounding a buzzer or the like. The light beam emission operation by the light receiving unit is started.
- step S11 it is determined whether or not a foreign object has been detected by the light projecting / receiving unit during the forced door closing operation.
- the process proceeds to step S12 to determine whether or not the forced door closing operation is completed based on the on / off signal obtained from the door closing terminal position detection device.
- step S13 the process returns to step S11.
- step S20 clear the number of times of reverse door opening and resume the normal control operation. As a result, the car is ready to start running.
- step S14 the ON position obtained from the door closing end position detecting device is obtained. It is determined whether or not the forced door closing operation has been completed based on the / off signal. If it is determined NO, the forced door closing operation is continued in step S15, and then the process returns to step S14. Thereafter, when the forced door closing operation is completed and it is determined as YES in step S14, the process proceeds to step S16, and the voice guidance system in the car or the display guidance system in the car or landing is used.
- step S17 it is determined whether or not a door opening button in the car or a landing call button provided on the stop floor of the car is pressed, and if no, the process proceeds to step S18. Then, it is determined whether or not a predetermined time, for example, 2 seconds has elapsed since the notification of the start of traveling of the car was completed. If it is determined NO, the process returns to step S17 to repeat the determination of whether the door open button or the hall call button has been pressed.
- step S19 If the door open button or the landing call button is pressed between the end of the notification of the start of the car and the elapse of the predetermined time, in step S19, the light beam from the light projecting / receiving unit is received. And the door opening operation is executed. As a result, it is possible to remove foreign matter sandwiched between the car doors during the forced door closing operation. Then, it returns to step S1 of FIG. 18, and waits by completion of door opening.
- step S20 of FIG. the reverse door opening is performed in step S20 of FIG. And the normal control operation is resumed. As a result, the car is ready to start running. Finally, the process proceeds to step S8 in FIG. 18, the light beam emitting operation by the light projecting / light receiving unit is stopped, and the above series of procedures is terminated.
- the emission of the light beam from the light projecting / receiving unit (4) is stopped during standby in the door open state, and the light from the light projecting / receiving unit (4) is started at the start of the door closing operation. Beam emission is started. Thereafter, when a foreign object detection signal is generated during the door closing operation, or when some force acts on the safety shoe frame, the reverse door opening is executed and the light beam from the light projecting / receiving unit (4) is transmitted. The emission is stopped. On the other hand, when the door closing operation is completed without foreign matter being detected, emission of the light beam from the light projecting / light receiving unit (4) is stopped at the time of completion.
- the forced door closing operation is notified after the notification that the forced door closing operation is started. Operation starts. Further, when a foreign object is detected by the light projecting / receiving unit (4) during the forced door closing operation, it is notified that the traveling of the car is started after the forced door closing operation is completed. Traveling starts.
- the door opening standby and the normal door opening operation are performed. It is possible to prevent the light beam from being looked into. Further, when a foreign object is detected during the door closing operation, the reverse door opening operation is executed. At this time, the emission of the light beam from the light projecting / receiving unit (4) is stopped. . Thereby, it is possible to prevent the light beam from being looked into during the reverse door opening operation.
- the light projecting / receiving unit (4) When a person puts his / her head or shoulder into the entrance / exit and looks into the light beam emitted from the light projecting / receiving unit (4) during the door closing operation, the light projecting / receiving unit (4) As a result, the head and shoulders of the person are detected as foreign matters, and as a result, the reverse door opening operation is executed and the emission of the light beam from the light projecting / light receiving unit (4) is stopped. Even if the human head or shoulder is not detected as a foreign object by the light projecting / receiving unit (4), the human head or shoulder collides with the safety shoe frame, and as a result, the reverse door opening operation is performed. When executed, the emission of the light beam from the light projecting / receiving unit (4) is stopped. Therefore, it is impossible to look into the light beam emitted from the light projecting / receiving unit (4) during the door closing operation, and it is possible to prevent the light beam from being looked into during the door closing operation.
- the light beam emitting operation by the light projecting / receiving unit (4) is started at the start of the door closing operation, whereas the elevator of the present embodiment is After the door closing operation is started, when the car doors (2) and (3) are closed to a predetermined closing position, the emission operation is started. Since the overall configuration and electrical configuration of the elevator according to the present embodiment are the same as those of the elevator according to the first embodiment except for the control unit, description thereof will be omitted.
- FIGS. 20 and 21 show the control procedure executed by the control unit of this embodiment.
- step S21 of FIG. 20 the process waits for the door opening completion (fully opened state) and light by the light projecting / light receiving unit. The beam extraction operation is stopped.
- step S22 it is determined whether or not the door opening time has expired. If no, the process returns to step S21 to wait for the door opening completion and continue the light beam emission stop state.
- step S23 When the door opening time expires and it is determined YES in step S22, the process proceeds to step S23, and when the reverse door opening is repeated a predetermined number of times N or more due to the detection of a foreign object, or the door opening waiting time is It is determined whether or not any of the cases where the predetermined time T is reached.
- step S24 the door closing operation is executed at a normal speed (high speed), and the light beam emission stop state is continued.
- step S25 a foreign object is detected. It is judged whether it was done.
- the process proceeds to step S26 to perform the reverse door opening.
- the light beam emission stop state is continued, and the process returns to step S21 to wait for the door opening completion and continue the light beam emission stop state.
- step S25 when it is determined in step S25 that no foreign matter has been detected, the process proceeds to step S27, and whether or not both car doors have reached a predetermined closed position based on the door position signal obtained from the door control device. If NO is determined, the process returns to step S24 to continue the door closing operation at a normal speed and continue the light beam emission stop state.
- the predetermined closing position is set to a position where the width between the end faces in the closing direction of the two car doors to be in contact with each other is such that a person's head and shoulders do not enter, for example 70 mm.
- step S27 the process proceeds to step S28, and the door closing operation at the normal speed is continued and the light projecting / receiving is continued.
- step S29 After performing the light beam emission operation by the unit, it is determined in step S29 whether or not a foreign object has been detected.
- a foreign object detection signal is generated, or when some force is applied to the safety shoe frame, it is presumed that there is a foreign object at the entrance / exit of the car.
- step S29 when it is determined in step S29 that no foreign matter has been detected, the process proceeds to step S30, and whether or not the door closing operation has been completed based on the on / off signal obtained from the door closing terminal position detection device. If NO is determined, the process returns to step S28 to continue the door closing operation at a normal speed and the light beam emission operation. Thereafter, when the door closing operation is completed and it is determined YES in step S30, the light beam emission operation by the light projecting / light receiving unit is stopped in step S31, and the series of procedures is ended.
- step S32 a notification that the door closing operation is to be started is made using the voice guidance system in the car or the display guidance system in the car or landing, and from the car door. Warning to leave.
- step S33 a forced door closing operation that forcibly closes the car door at a low speed regardless of whether or not a foreign object is detected by the light projecting / receiving unit is performed while a buzzer or the like is sounding.
- step S34 it is determined whether or not both car doors have reached the predetermined closed position based on the door position signal obtained from the door control device. When it is determined NO, the process returns to step S33. Continue forced door closing.
- step S34 the process proceeds to step S35, and after the light beam emitting operation by the light projecting / receiving unit is started, In step S36, it is determined whether a foreign matter is detected by the light projecting / receiving unit during the forced door closing operation.
- step S37 it is determined whether or not the forced door closing operation is completed based on the on / off signal obtained from the door closing terminal position detection device.
- step S38 the forced door closing operation is continued, and then the process returns to step S36.
- step S37 the process proceeds to step S45, where the number of times of reverse door opening is cleared and the normal control operation is resumed. As a result, the car is ready to start running. Finally, the process proceeds to step S31 in FIG. 20, the light beam emission operation by the light projecting / light receiving unit is stopped, and the above series of procedures is terminated.
- step S39 the ON position obtained from the door closing end position detecting device is obtained. It is determined whether or not the forced door closing operation is completed based on the / off signal. If it is determined NO, the forced door closing operation is continued in step S40, and then the process returns to step S39. Thereafter, when the forced door closing operation is completed and it is determined as YES in step S39, the process proceeds to step S41, and the voice guidance system in the car or the display guidance system in the car or the landing is used.
- step S42 it is determined whether or not the door opening button in the car or the landing call button provided on the stop floor of the car is pressed. If the answer is no, the process proceeds to step S43. Then, it is determined whether or not a predetermined time, for example, 2 seconds has elapsed since the notification of the start of traveling of the car was completed. If it is determined NO, the process returns to step S42 to repeat the determination of whether the door open button or the hall call button has been pressed.
- step S44 If the door open button or the landing call button is pressed during the predetermined time after the notification of the start of traveling of the car is finished, the light beam by the light projecting / receiving unit is received in step S44. And the door opening operation is executed. As a result, it is possible to remove foreign matter sandwiched between the car doors during the forced door closing operation. Then, it returns to step S31 of FIG. 20, and waits for the door opening completion.
- step S45 of FIG. 20 the reverse door opening is performed in step S45 of FIG. And the normal control operation is resumed. As a result, the car is ready to start running. Finally, the process proceeds to step S31 in FIG. 20, the light beam emission operation by the light projecting / light receiving unit is stopped, and the above series of procedures is terminated.
- the emission of the light beam from the light projecting / receiving unit (4) is stopped.
- emission of the light beam from the light projecting / light receiving unit (4) is stopped at the time of completion.
- a forced door closing operation is notified and then the forced door closing is started. Operation starts.
- a foreign object is detected by the light projecting / receiving unit (4) during the forced door closing operation, it is notified that the traveling of the car is started after the forced door closing operation is completed. Traveling starts.
- the door opening standby and the normal door opening operation are performed. It is possible to prevent the light beam from being looked into.
- the light beam emitting operation by the light projecting / light receiving unit (4) starts when the car doors (2) (3) are closed to the predetermined closing position. Therefore, it is physically impossible for a person to put a head or shoulder into the entrance / exit and look into the light beam after the light beam emission operation is started, and the light beam looks into the door during the door closing operation. Can be surely prevented.
- the reverse door opening operation is executed. At this time, the emission of the light beam from the light projecting / receiving unit (4) is stopped. Therefore, it is possible to prevent the light beam from being looked into during the reverse door opening operation.
- the elevator according to the present embodiment detects foreign matter by the light projecting / light receiving unit (4) not only during the door closing operation but also during the standby in the door open state. Since the overall configuration and electrical configuration of the elevator according to the present embodiment are the same as those of the elevator according to the first embodiment except for the control unit, description thereof will be omitted.
- step S51 of FIG. 22 it is determined whether or not the reverse door opening is repeated a predetermined number of times N or more by detecting a foreign object. If NO is determined, the process proceeds to step S52, waits for the door opening completion (fully opened state) and performs the light beam emission operation by the light projecting / light receiving unit, and then the light projecting in step S53. / Foreign matter is detected by the light receiving unit.
- step S53 the process proceeds to step S54 to determine whether the door opening time has expired. If YES, the door opening standby time is set to the predetermined time T in step S55. When it is determined as NO, the process proceeds to step S56, and the door closing operation is performed at a normal speed (high speed) and the light beam emitting operation by the light projecting / receiving unit is performed. Thereafter, in step S57, it is determined whether or not a foreign object has been detected.
- a foreign object detection signal is generated or when some force is applied to the safety shoe frame, there is a person or foreign object getting on or off the entrance of the car, or a person looks into the light beam.
- step S58 to perform reverse door opening and stop the light beam emission operation by the light projecting / light receiving unit, and then return to step S51 to detect the foreign matter.
- step S58 to perform reverse door opening and stop the light beam emission operation by the light projecting / light receiving unit, and then return to step S51 to detect the foreign matter.
- step S57 when it is determined in step S57 that no foreign matter has been detected, the process proceeds to step S59, and whether or not the door closing operation has been completed based on the on / off signal obtained from the door closing terminal position detection device. If NO is determined, the process returns to step S56 to continue the door closing operation at a normal speed and the light beam emitting operation. Thereafter, when the door closing operation is completed and it is determined YES in step S59, the light beam emitting operation by the light projecting / light receiving unit is stopped in step S60, and the series of procedures is terminated.
- step S53 When a foreign object detection signal is generated while waiting in the door open state and it is determined yes in step S53, there is a foreign object at the entrance of the car or a person looks into the light beam. Since it is presumed to have been performed, the process proceeds to step S62 in FIG. 23, the door opening time is extended for several seconds, and the light beam emitting operation by the light projecting / receiving unit is stopped, and then in step S63. It is determined whether the door opening time has expired. If no, the same determination is repeated in step S63. Thereafter, when the door opening time expires and it is determined as YES in step S63, the process proceeds to step S64 to determine whether or not the door opening waiting time has reached the predetermined time T, and it is determined NO.
- step S65 the light projecting / receiving unit performs a light beam emitting operation
- step S66 it is determined whether a foreign object is detected by the projecting / receiving unit.
- the process returns to step S62.
- the process proceeds to step S56 in FIG.
- the door closing operation is executed at a high speed, and the light beam emitting operation by the light projecting / receiving unit is continued.
- the door opening standby time reaches the predetermined time T and it is determined as YES in step S64 in FIG. 23, the process proceeds to step S67 in FIG.
- step S61 in FIG. 23, and whether the door opening time has expired. If the answer is no, the same determination is repeated in step S61. Thereafter, when the door opening time expires and it is determined as YES in step S61, the process proceeds to step S67 in FIG. Also, when the door opening standby time reaches the predetermined time T and it is determined YES in step S55 in FIG. 22, the process proceeds to step S67 in FIG.
- step S67 a voice guidance system in the car or a display guidance system in the car or at the landing is used to notify the start of the door closing operation and to warn away from the car door.
- step S68 a forced door closing operation forcibly closing the car door at a low speed regardless of whether or not a foreign object has been detected by the light projecting / receiving unit is performed while sounding a buzzer or the like. The light beam emission operation by the light receiving unit is started. During this forced door closing operation, even if a foreign object detection signal is generated by the light projecting / receiving unit, the reverse door opening is not executed, and the reversal caused by the foreign object being detected by the light projecting / receiving unit. Door opening is disabled.
- step S69 it is determined whether or not a foreign object has been detected by the light projecting / receiving unit during the forced door closing operation.
- the process proceeds to step S70, where it is determined whether or not the forced door closing operation is completed based on the on / off signal obtained from the door closing terminal position detection device. If it is determined, after the forced door closing operation is continued in step S71, the process returns to step S69. Thereafter, when the forced door closing operation is completed and it is determined as YES in step S70, the process proceeds to step S78 to clear the number of times of reverse door opening and resume the normal control operation. As a result, the car is ready to start running. Finally, the process proceeds to step S60 in FIG. 22, the light beam emitting operation by the light projecting / receiving unit is stopped, and the above series of procedures is terminated.
- step S72 the ON position obtained from the door closing end position detecting device is obtained. It is determined whether or not the forced door closing operation is completed based on the / off signal. If it is determined NO, the forced door closing operation is continued in step S73, and then the process returns to step S72. Thereafter, when the forced door closing operation is completed and it is determined YES in step S72, the process proceeds to step S74, and the voice guidance system in the car or the display guidance system in the car or the landing is used.
- step S75 it is determined whether or not a door opening button in the car or a landing call button provided on the stop floor of the car has been pressed. If NO, the process proceeds to step S76. Then, it is determined whether or not a predetermined time, for example, 2 seconds has elapsed since the notification of the start of traveling of the car was completed. If it is determined NO, the process returns to step S75 to repeat the determination of whether the door open button or the hall call button has been pressed.
- step S77 the light beam by the light projecting / receiving unit is received. And the door opening operation is executed. As a result, it is possible to remove foreign matter sandwiched between the car doors during the forced door closing operation. Thereafter, the process returns to step S51 in FIG.
- step S78 of FIG. the reverse door opening is performed in step S78 of FIG. And the normal control operation is resumed. As a result, the car is ready to start running. Finally, the process proceeds to step S60 in FIG. 22, the light beam emitting operation by the light projecting / receiving unit is stopped, and the above series of procedures is terminated.
- the door opening time is extended for several seconds and the emission of the light beam from the light projecting / receiving unit (4) is stopped. Thereafter, when the extended door opening time has expired, the light beam emitting operation by the light projecting / receiving unit (4) is resumed, and the foreign object detection operation is resumed. At that time, the foreign object detection signal is generated again. If there is a foreign object remaining at the entrance or exit, it is presumed that the person continues to look into the light beam. The emission of the light beam from the unit (4) is stopped.
- the door closing operation is started and the light beam emitting operation by the light projecting / light receiving unit (4) is continued.
- the light projecting / receiving unit (4) emits the light beam during the door closing operation, and when a foreign object detection signal is generated during the door closing operation, or some force is applied to the safety shoe frame. Sometimes, reverse door opening is performed and emission of the light beam from the light projecting / receiving unit (4) is stopped. On the other hand, when the door closing operation is completed without foreign matter being detected, emission of the light beam from the light projecting / light receiving unit (4) is stopped at the time of completion.
- a forced door closing operation is notified and then the forced door closing is started. Operation starts. Further, when a foreign object is detected by the light projecting / receiving unit (4) during the forced door closing operation, it is notified that the traveling of the car is started after the forced door closing operation is completed. Traveling starts.
- the emission of the light beam from the light projecting / receiving unit (4) is stopped when a foreign object is detected during the door opening standby.
- a person can enter the doorway during the door opening standby.
- the human head or shoulder is detected as a foreign object.
- the light projecting / receiving unit ( The emission of the light beam from 4) is stopped. Accordingly, it is impossible to look into the light beam emitted from the light projecting / receiving unit (4) during the door opening standby, and it is possible to prevent the light beam from being looked into during the door opening standby.
- the door opening time is extended when a foreign object is detected, so if a person tries to look into the light beam with his head or shoulder in the entrance just before the door closing operation starts, It is possible to prevent the car doors (2) and (3) from colliding with a person's head and shoulders. Further, when a foreign object is detected during the door closing operation, the reverse door opening operation is executed. At this time, the emission of the light beam from the light projecting / light receiving unit (4) is stopped. Thereby, it is possible to prevent the light beam from being looked into during the reverse door opening operation.
- each part structure of this invention is not restricted to the said embodiment, A various deformation
- the present invention is applied to the safety device for the center open type elevator, but as shown in FIG. 25, the door is approached and separated from the door stop frame (12).
- a side open type elevator safety device having at least one car door (23) that moves in the direction to open and close the entrance.
- the car door (23) has a predetermined direction from the closing end surface (23a) to be in contact with the door stop frame (12) to the door stop frame (12) side.
- the light projecting / receiving unit (4) is disposed downward at the upper end position on the straight line extending vertically from the position separated by the distance, while the first reflecting member is directed upward at the lower end position on the straight line. (5) is deployed.
- a light projecting / receiving unit (4) and a reflecting member (4) are respectively attached to a frame (80) disposed above the entrance and exit and a sill (8) disposed below the entrance. It is also possible to implement it in an elevator safety device provided with 5).
- the frame (80) is positioned at a linear position extending vertically from the contact position where the pair of car doors (2) and (3) contact each other in the fully closed state.
- the light projecting / receiving unit (4) is disposed in the frame (80) disposed above the entrance and exit, and one of the pair of car doors (2) and (3). It can also be implemented in an elevator safety device in which the car door (3) is provided with a reflecting member (5).
- the frame (80) has a straight line extending up and down at the contact positions where the pair of car doors (2) and (3) contact each other in the fully closed state.
- the light projecting / receiving unit (4) is arranged downward at the position of one of the car doors (3), and the lower end position (3a) of the closing direction end surface (3a) to be in contact with the other car door (2)
- a reflecting member (5) is arranged upward.
- the present invention can also be implemented in an elevator safety device in which a light projecting / light receiving unit (4) and a reflecting member (61) are provided on a door stop frame (84) as shown in FIG.
- the door stop frame (84) is a predetermined distance from the end surface (84a) with which the car door (23) should abut to the car door (23) side.
- the light projecting / receiving unit (4) is disposed downward at the upper end position on a straight line extending away from the upper position, while the reflecting member (61) is disposed at the lower end position on the straight line. ing.
- a light projecting / receiving unit (4) is disposed at the upper end position on a straight line extending vertically from the contact position R1 (see FIG. 29) where the car door (23) contacts in the fully closed state. It is also possible to arrange a reflecting member (61) at a lower position. In this type of elevator safety device, as shown in FIGS.
- a door-to-door frame with which the car door (23) should abut A pair of recesses (84b) (23b) extending along the straight line on the end surface (84a) of (84) and the closing direction end surface (23a) of the car door (23) to be in contact with the door stop frame (84)
- a pair of notches (84c) (23c) is formed, and a passage (115) for allowing the light beam to pass when the car door (23) is in a fully closed state has the pair of recesses (84b) ( 23b) or the pair of notches (84c) and (23c).
- the present invention is applied to an elevator safety device that detects a foreign object using a light beam that traverses the entrance and exit in the vertical direction, but using a light beam that traverses in the horizontal direction. It can also be implemented in an elevator safety device that detects foreign matter. Furthermore, the present invention, together with the light projecting / receiving unit (4), emits a large number of light beams that traverse the entire area of the entrance / exit or substantially the entire area, and detects a foreign object when a part of the light beams is blocked. It can also be implemented in an elevator safety device with a multi-optical axis sensor that generates signals. For example, in an elevator that employs the control procedure shown in FIGS.
- the head or shoulder when a person tries to look into the light beam immediately after the start of the door closing operation, the head or shoulder is inserted at the moment the head or shoulder is inserted into the entrance / exit. Is detected as a foreign object and the emission of the light beam is stopped, so that the light beam can be reliably prevented from being looked into during the door closing operation.
- the light beam in an elevator that employs the control procedure shown in FIGS. 22 to 24, the light beam can be reliably prevented from being looked into during the door opening standby and the door closing operation.
- the present invention can be applied directly to a light beam emitted from the projector as long as there is no foreign object in its path, such as an elevator safety device in which a projector is provided above the entrance and exit and a light receiver is provided below. It is also possible to implement it in an elevator safety device that will enter the light receiver.
Landscapes
- Elevator Door Apparatuses (AREA)
Abstract
Description
又、乗りかごの乗降口を横切る光ビームを生成して、該光ビームを人や異物が遮ると、かごドア及び乗り場ドアを閉じ動作から開き動作に反転させることが行なわれている。光ビームを用いた異物検知方式として、種々の方式が提案されている(例えば、特許文献1及び2参照)。 The elevator car door is provided with a safety shoe frame that protrudes from the end surface in the closing direction and moves relative to the car door. The safety shoe frame collides with a person or a foreign object during the process of closing the car door. When a force acts on the safety shoe frame, the car door and the landing door are reversed from the closing operation to the opening operation.
In addition, when a light beam crossing the entrance of the car is generated and a person or a foreign object blocks the light beam, the car door and the landing door are reversed from the closing operation to the opening operation. Various methods have been proposed as a foreign object detection method using a light beam (see, for example,
しかしながら、レーザ光は危険度に応じてクラス分けが行なわれており、比較的安全なクラスに属するレーザ光であっても、人が覗き込んだ場合には目に障害を受ける虞がある。又、覗き込んだことによって障害を受けていないか不安を抱くこともある。そこで、レーザ光等の光ビームを用いて異物を検知するエレベータにおいては、光ビームが覗き込まれることを防止する対策を講じることが必要となる。
本発明の目的は、光ビームが覗き込まれることを防止することが出来るエレベータの安全装置を提供することである。 In an elevator that detects a foreign object using a light beam, a laser may be employed as a projector.
However, laser light is classified according to the degree of danger, and even if the laser light belongs to a relatively safe class, there is a risk of eye damage when a person looks into it. You may also feel anxious about whether you are injured by looking into it. Therefore, in an elevator that detects a foreign object using a light beam such as a laser beam, it is necessary to take measures to prevent the light beam from being looked into.
An object of the present invention is to provide an elevator safety device that can prevent a light beam from being looked into.
両かごドアの閉じ動作の開始時点或いは両かごドアの閉じ動作中に投光手段による出射動作が開始されて、異物検知手段による異物検知動作が開始される。乗りかごの乗降口に異物が存在しない場合、異物検知動作が開始されてから両かごドアが全閉状態となるまで、投光手段から出射される光ビームは受光手段へ入射する。従って、受光手段による光ビームの検知が中断されることはなく異物検知信号は生成されない。これに対し、乗降口に異物が存在する場合には、異物検知動作が開始されてから両かごドアが全閉状態となるまでの過程で、投光手段から出射される光ビームが該異物によって遮られるので、受光手段による光ビームの検知が中断され、その結果、異物検知信号が生成される。
上記本発明に係る第1のエレベータの安全装置においては、上述の如く両かごドアの全開状態では投光手段による出射動作を停止させることによって、該状態で光ビームが覗き込まれることを防止することが出来る。 In the first elevator safety apparatus according to the present invention, when the car doors are fully opened, the emission operation by the light projecting means is stopped and the foreign object detection operation by the foreign object detection means is not performed.
The emission operation by the light projecting unit is started at the start of the closing operation of the car doors or during the closing operation of the car doors, and the foreign object detection operation by the foreign object detection unit is started. When there is no foreign object at the entrance of the car, the light beam emitted from the light projecting means is incident on the light receiving means from the start of the foreign object detection operation until the car doors are fully closed. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated. On the other hand, when there is a foreign object at the entrance, the light beam emitted from the light projecting means is caused by the foreign object in the process from the start of the foreign object detection operation until the car doors are fully closed. Since it is blocked, detection of the light beam by the light receiving means is interrupted, and as a result, a foreign object detection signal is generated.
In the first elevator safety device according to the present invention, as described above, when the car doors are fully open, the light projecting means stops the emission operation to prevent the light beam from being looked into in this state. I can do it.
又、両かごドアの閉じ動作中に人が乗降口に頭や肩を入れて投光手段から出射される光ビームを覗き込もうとした場合には、異物検知手段により人の頭や肩が異物として検知され、その結果、両かごドアが閉じ動作から開き動作に反転すると共に、投光手段による出射動作が停止されることになる。従って、両かごドアの閉じ動作中に投光手段から出射される光ビームを覗き込むことは出来ず、両かごドアの閉じ動作中においても光ビームが覗き込まれることを防止することが出来る。 In the above specific form, when there is a foreign object at the entrance, the foreign object detection signal is generated while the car doors are closed as described above, and as a result, the car doors are reversed from the closing operation to the opening operation. At this time, the emission operation by the light projecting means is stopped. Thereby, it is possible to prevent the light beam from being looked into during the reversing opening operation of the car doors.
In addition, if a person tries to look into the light beam emitted from the light projecting means while the both car doors are being closed, the person's head or shoulder is As a result, the car doors are reversed from the closing operation to the opening operation, and the emission operation by the light projecting means is stopped. Therefore, it is impossible to look into the light beam emitted from the light projecting means during the closing operation of the car doors, and it is possible to prevent the light beam from being looked into even during the closing operation of the car doors.
両かごドアの閉じ位置が前記所定の閉じ位置に到達した時点で投光手段による出射動作が開始されて、異物検知手段による異物検知動作が開始される。乗りかごの乗降口に異物が存在しない場合、異物検知動作が開始されてから両かごドアが全閉状態となるまで、投光手段から出射される光ビームは受光手段へ入射する。従って、受光手段による光ビームの検知が中断されることはなく異物検知信号は生成されない。これに対し、乗降口に異物が存在する場合には、異物検知動作が開始されてから両かごドアが全閉状態となるまでの過程で、投光手段から出射される光ビームが該異物によって遮られるので、受光手段による光ビームの検知が中断され、その結果、異物検知信号が生成される。 In the second elevator safety device according to the present invention, the car doors are fully opened and the closing operation of the car doors is started until the closing position of the car doors reaches a predetermined closing position. The emission operation by the light projecting unit is stopped, and the foreign object detection operation by the foreign object detection unit is not performed. Here, the predetermined closed position is set to a position where the width between the end faces in the closing direction of the two car doors to be in contact with each other is such that a person's head and shoulders do not enter.
When the closed position of both car doors reaches the predetermined closed position, the emission operation by the light projecting means is started, and the foreign object detection operation by the foreign object detection means is started. When there is no foreign object at the entrance of the car, the light beam emitted from the light projecting means is incident on the light receiving means from the start of the foreign object detection operation until the car doors are fully closed. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated. On the other hand, when there is a foreign object at the entrance, the light beam emitted from the light projecting means is caused by the foreign object in the process from the start of the foreign object detection operation until the car doors are fully closed. Since it is blocked, detection of the light beam by the light receiving means is interrupted, and as a result, a foreign object detection signal is generated.
上記具体的形態においては、乗降口に異物が存在する場合、上述の如く両かごドアが閉じる過程で異物検知信号が生成され、その結果、両かごドアが閉じ動作から開き動作に反転することになるのであるが、このとき、投光手段による出射動作が停止される。これによって、両かごドアの反転開き動作中に光ビームが覗き込まれることを防止することが出来る。
又、両かごドアの閉じ動作中に人が乗降口に頭や肩を入れて投光手段から出射される光ビームを覗き込もうとした場合、異物検知手段により人の頭や肩が異物として検知され、その結果、両かごドアが閉じ動作から開き動作に反転すると共に、投光手段による出射動作が停止されることになる。従って、両かごドアの閉じ動作中に投光手段から出射される光ビームを覗き込むことは出来ず、両かごドアの閉じ動作中に光ビームが覗き込まれることを防止することが出来る。 In the above specific form, when there is no foreign object at the entrance of the car, the light beam emitted from the light projecting means enters the light receiving means until the car doors are fully closed. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated. On the other hand, when there is a foreign object at the entrance, the light beam emitted from the light projecting means is blocked by the foreign substance in the process until the car doors are fully closed. The detection of the beam is interrupted, and as a result, a foreign object detection signal is generated.
In the above specific form, when there is a foreign object at the entrance, the foreign object detection signal is generated while the car doors are closed as described above, and as a result, the car doors are reversed from the closing operation to the opening operation. At this time, the emission operation by the light projecting means is stopped. Thereby, it is possible to prevent the light beam from being looked into during the reversing opening operation of the car doors.
In addition, if a person tries to look into the light beam emitted from the light projecting means by putting his head or shoulders into the entrance / exit while the car doors are being closed, the person's head or shoulders will become foreign objects by the foreign object detection means. As a result, both the car doors are reversed from the closing operation to the opening operation, and the emission operation by the light projecting means is stopped. Therefore, it is impossible to look into the light beam emitted from the light projecting means during the closing operation of the car doors, and it is possible to prevent the light beam from being looked into during the closing operation of the car doors.
前記異物検知手段による異物検知信号の生成の有無に拘わらず強制的に両かごドアを閉じる強制戸閉め動作を実行する強制戸閉め手段と、
前記強制戸閉め手段による強制戸閉め動作の実行前に、或いは該強制戸閉め動作の実行中に、該強制戸閉め動作の実行を報知する報知手段
とを具えている。 In a specific form of the first to third elevator safety devices according to the present invention, the control means includes:
Forced door closing means for forcibly closing the car doors regardless of whether or not a foreign object detection signal is generated by the foreign object detection means;
Informing means for informing execution of the forced door closing operation before or during execution of the forced door closing operation by the forced door closing means.
前記強制戸閉め手段による強制戸閉め動作の完了後に乗りかごの走行を開始させる乗りかご制御手段と、
前記強制戸閉め手段による強制戸閉め動作の実行中に前記異物検知手段により異物検知信号が生成された場合に、前記乗りかご制御手段により乗りかごの走行が開始される前に乗りかごの走行開始を報知する第2の報知手段
とを具えている。 Further, in a specific form, the control means further includes
Car control means for starting travel of the car after completion of the forced door closing operation by the forced door closing means;
When the foreign object detection signal is generated by the foreign object detection means during execution of the forced door closing operation by the forced door closing means, the traveling start of the car is started before the traveling of the car is started by the car control means. Second informing means for informing.
かごドアの閉じ動作の開始時点或いはかごドアの閉じ動作中に投光手段による出射動作が開始されて、異物検知手段による異物検知動作が開始される。乗りかごの乗降口に異物が存在しない場合、異物検知動作が開始されてからかごドアが全閉状態となるまで、投光手段から出射される光ビームは受光手段へ入射する。従って、受光手段による光ビームの検知が中断されることはなく異物検知信号は生成されない。これに対し、乗降口に異物が存在する場合には、異物検知動作が開始されてからかごドアが全閉状態となるまでの過程で、投光手段から出射される光ビームが該異物によって遮られるので、受光手段による光ビームの検知が中断され、その結果、異物検知信号が生成される。
上記本発明に係る第4のエレベータの安全装置においては、上述の如くかごドアの全開状態では投光手段による出射動作を停止させることによって、該状態で光ビームが覗き込まれることを防止することが出来る。 In the fourth elevator safety apparatus according to the present invention, when the car door is fully opened, the emission operation by the light projecting means is stopped, and the foreign object detection operation by the foreign object detection means is not performed.
At the start of the car door closing operation or during the car door closing operation, the light projecting means starts the emission operation, and the foreign object detection means starts the foreign object detection operation. When no foreign matter is present at the entrance of the car, the light beam emitted from the light projecting means is incident on the light receiving means until the car door is fully closed after the foreign matter detection operation is started. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated. On the other hand, when there is a foreign object at the entrance, the light beam emitted from the light projecting means is blocked by the foreign object in the process from the start of the foreign object detection operation until the car door is fully closed. Therefore, detection of the light beam by the light receiving means is interrupted, and as a result, a foreign object detection signal is generated.
In the fourth elevator safety apparatus according to the present invention, as described above, when the car door is fully opened, the light emitting means stops the emission operation to prevent the light beam from being looked into in this state. I can do it.
又、かごドアの閉じ動作中に人が乗降口に頭や肩を入れて投光手段から出射される光ビームを覗き込もうとした場合には、異物検知手段により人の頭や肩が異物として検知され、その結果、かごドアが閉じ動作から開き動作に反転すると共に、投光手段による出射動作が停止されることになる。従って、かごドアの閉じ動作中に投光手段から出射される光ビームを覗き込むことは出来ず、かごドアの閉じ動作中に光ビームが覗き込まれることを防止することが出来る。 In the above specific form, when there is a foreign object at the doorway, a foreign object detection signal is generated in the process of closing the car door as described above, and as a result, the car door is reversed from the closing operation to the opening operation. At this time, the emission operation by the light projecting means is stopped. Thus, it is possible to prevent the light beam from being looked into during the reversing opening operation of the car door.
Also, when a person tries to look into the light beam emitted from the light projecting means while the car door is being closed, the person's head or shoulder is As a result, the car door is reversed from the closing operation to the opening operation, and the emission operation by the light projecting means is stopped. Accordingly, it is impossible to look into the light beam emitted from the light projecting means during the closing operation of the car door, and it is possible to prevent the light beam from being looked into during the closing operation of the car door.
かごドアの閉じ位置が前記所定の閉じ位置に到達した時点で投光手段による出射動作が開始されて、異物検知手段による異物検知動作が開始される。乗りかごの乗降口に異物が存在しない場合、異物検知動作が開始されてからかごドアが全閉状態となるまで、投光手段から出射される光ビームは受光手段へ入射する。従って、受光手段による光ビームの検知が中断されることはなく異物検知信号は生成されない。これに対し、乗降口に異物が存在する場合には、異物検知動作が開始されてからかごドアが全閉状態となるまでの過程で、投光手段から出射される光ビームが該異物によって遮られるので、受光手段による光ビームの検知が中断され、その結果、異物検知信号が生成される。 In the fifth elevator safety device according to the present invention, the light is projected from the fully open state of the car door and from the start of the car door closing operation until the car door closing position reaches a predetermined closing position. The emission operation by the means is stopped, and the foreign object detection operation by the foreign object detection means is not performed. Here, the predetermined closed position is set to a position where the width between the end face of the car door in the closing direction and the door stop frame is a width that does not allow a person's head or shoulder to enter.
When the closing position of the car door reaches the predetermined closing position, the emission operation by the light projecting means is started, and the foreign object detection operation by the foreign object detection means is started. When no foreign matter is present at the entrance of the car, the light beam emitted from the light projecting means is incident on the light receiving means until the car door is fully closed after the foreign matter detection operation is started. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated. On the other hand, when there is a foreign object at the entrance, the light beam emitted from the light projecting means is blocked by the foreign object in the process from the start of the foreign object detection operation until the car door is fully closed. Therefore, detection of the light beam by the light receiving means is interrupted, and as a result, a foreign object detection signal is generated.
上記具体的形態においては、乗降口に異物が存在する場合、上述の如くかごドアが閉じる過程で異物検知信号が生成され、その結果、かごドアが閉じ動作から開き動作に反転することになるのであるが、このとき、投光手段による出射動作が停止される。これによって、かごドアの反転開き動作中に光ビームが覗き込まれることを防止することが出来る。
又、かごドアの閉じ動作中に人が乗降口に頭や肩を入れて投光手段から出射される光ビームを覗き込もうとした場合、異物検知手段により人の頭や肩が異物として検知され、その結果、かごドアが閉じ動作から開き動作に反転すると共に、投光手段による出射動作が停止されることになる。従って、かごドアの閉じ動作中に投光手段から出射される光ビームを覗き込むことは出来ず、かごドアの閉じ動作中に光ビームが覗き込まれることを防止することが出来る。 In the above specific form, when no foreign matter is present at the entrance of the car, the light beam emitted from the light projecting means enters the light receiving means until the car door is fully closed. Therefore, the detection of the light beam by the light receiving means is not interrupted and no foreign object detection signal is generated. On the other hand, when there is a foreign object at the entrance, the light beam emitted from the light projecting means is blocked by the foreign substance in the process until the car door is fully closed. As a result, a foreign object detection signal is generated.
In the above specific form, when there is a foreign object at the doorway, a foreign object detection signal is generated in the process of closing the car door as described above, and as a result, the car door is reversed from the closing operation to the opening operation. At this time, the emission operation by the light projecting means is stopped. Thus, it is possible to prevent the light beam from being looked into during the reversing opening operation of the car door.
Also, when a person tries to look into the light beam emitted from the light projecting means while the car door is being closed, the person's head or shoulder is detected as a foreign object by the foreign object detection means. As a result, the car door is reversed from the closing operation to the opening operation, and the emission operation by the light projecting means is stopped. Accordingly, it is impossible to look into the light beam emitted from the light projecting means during the closing operation of the car door, and it is possible to prevent the light beam from being looked into during the closing operation of the car door.
前記異物検知手段による異物検知信号の生成の有無に拘わらず強制的に前記かごドアを閉じる強制戸閉め動作を実行する強制戸閉め手段と、
前記強制戸閉め手段による強制戸閉め動作の実行前に、或いは該強制戸閉め動作の実行中に、該強制戸閉め動作の実行を報知する報知手段
とを具えている。 In specific forms of the fourth to sixth elevator safety devices according to the present invention, the control means includes:
Forced door closing means for forcibly closing the car door regardless of whether a foreign object detection signal is generated by the foreign object detection means;
Informing means for informing execution of the forced door closing operation before or during execution of the forced door closing operation by the forced door closing means.
前記強制戸閉め手段による強制戸閉め動作の完了後に乗りかごの走行を開始させる乗りかご制御手段と、
前記強制戸閉め手段による強制戸閉め動作の実行中に前記異物検知手段により異物検知信号が生成された場合に、前記乗りかご制御手段により乗りかごの走行が開始される前に乗りかごの走行開始を報知する第2の報知手段
とを具えている。 Further, in a specific form, the control means further includes
Car control means for starting travel of the car after completion of the forced door closing operation by the forced door closing means;
When the foreign object detection signal is generated by the foreign object detection means during execution of the forced door closing operation by the forced door closing means, the traveling start of the car is started before the traveling of the car is started by the car control means. Second informing means for informing.
第1実施例
本実施例のエレベータは、図1及び図2に示す如く、乗りかごの乗降口を開閉する左右一対のかごドア(2)(3)を具えたセンターオープンタイプのエレベータであって、乗降口上方のフレーム(102)にレール(1)が固定され、両かごドア(2)(3)はそれぞれ、ハンガー(21)(31)によってレール(1)に吊り下げられると共に、ドア下端部に突設されたガイドシュー(22)(32)が敷居(8)に摺動可能に嵌まって、水平方向の往復移動が案内されている。
又、フレーム(102)上には、両かごドア(2)(3)の開閉動作を制御する制御ユニット(100)が設置されている。 Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
First Embodiment The elevator of this embodiment is a center open type elevator having a pair of left and right car doors (2) and (3) for opening and closing the entrance of the car as shown in FIGS. The rail (1) is fixed to the frame (102) above the entrance and exit, and the car doors (2) and (3) are suspended from the rail (1) by hangers (21) and (31), respectively, and the lower end of the door Guide shoes (22) and (32) projecting from the part are slidably fitted to the sill (8) to guide horizontal reciprocation.
On the frame (102), a control unit (100) for controlling the opening / closing operation of the car doors (2) (3) is installed.
尚、投光/受光ユニット(4)の投光器としては例えば赤色半導体レーザを採用し、これによって直径1~2mmのスポットを形成する。投光/受光ユニット(4)の受光器は、入射光ビームによる受光量が所定の閾値を上回っているときは、異物検知信号を出力しない。これに対し、入射光ビームによる受光量が所定の閾値を下回っているときは、異物検知信号を出力する。 The light projecting / light receiving unit (4) is an integral unit of a light projector that emits a laser beam (hereinafter referred to as a light beam) B and a light receiver that detects an incident light beam B. As shown in FIG. 3, the car door (2) is supported by a stay (41) fixed to the end surface (2a) in the closing direction. The light beam emitting operation of the light projecting / receiving unit (4) is controlled by the control unit (100).
For example, a red semiconductor laser is used as the projector of the light projecting / receiving unit (4), thereby forming a spot having a diameter of 1 to 2 mm. The light receiver of the light projecting / light receiving unit (4) does not output a foreign object detection signal when the amount of light received by the incident light beam exceeds a predetermined threshold. On the other hand, when the amount of light received by the incident light beam is below a predetermined threshold, a foreign object detection signal is output.
尚、アーム部材(51)は、図8に示すステー(52)を介して左側のかごドア(2)に支持されている。ここで、ステー(52)はかごドア(2)に対してドア開閉方向の位置調節が可能に取り付けられ、アーム部材(51)はステー(52)に対してドア開閉方向とは直交する前後方向の位置調節が可能に取り付けられている。 As shown in FIG. 4, the first reflecting member (5) is provided on a horizontal arm portion of an L-shaped arm member (51) projecting from the lower end surface of the left car door (2). It has a reflecting surface that reflects the beam B vertically upward. The arm member (51) is accommodated in the groove (81) of the sill (8) in which the guide shoe of the car door (2) is fitted so as to be reciprocally movable.
The arm member (51) is supported by the left car door (2) via the stay (52) shown in FIG. Here, the stay (52) is attached to the car door (2) so that the position of the door opening / closing direction can be adjusted, and the arm member (51) is attached to the stay (52) in the longitudinal direction perpendicular to the door opening / closing direction. It is attached so that its position can be adjusted.
図2の如く両かごドア(2)(3)が全閉位置まで閉じる過程で、前記清掃具(7)が、左側のかごドア(2)に配備されている第1反射部材(5)の表面を清掃する(図8参照)。これによって、第1反射部材(5)の表面は常に良好な反射面に維持される。 Further, a mounting bracket (72) is fixed to the lower end portion of the right car door (3) at a rear position of the foreign matter intrusion preventing member (9) as shown in FIG. 7, and the mounting bracket (72) is made of a brush. The cleaning tool (7) is supported downward.
In the process of closing the car doors (2) and (3) to the fully closed position as shown in FIG. 2, the cleaning tool (7) is attached to the first reflecting member (5) disposed on the left car door (2). Clean the surface (see FIG. 8). Thus, the surface of the first reflecting member (5) is always maintained as a good reflecting surface.
その後、両かごドア(2)(3)が全閉直前状態から全閉状態まで閉じる過程で、投光/受光ユニット(4)は右側のかごドア(3)に形成されている収容空間(30)に侵入し、これによって、投光/受光ユニット(4)から出射された光ビームBは第2反射部材(6)へ入射して反射され、反射光ビームBは投光/受光ユニット(4)へ戻ることになる。 The light beam B emitted from the light projecting / receiving unit (4) in the process in which the car doors (2) and (3) are closed from the fully open state to the state immediately before the fully closed state is the first as long as there is no foreign matter in the path. The light enters the reflecting member (5) and is reflected, and the reflected light beam B returns to the light projecting / light receiving unit (4).
Thereafter, in the process in which the car doors (2) and (3) are closed from the state immediately before full closing to the fully closed state, the light projecting / receiving unit (4) is accommodated in a housing space (30 ), The light beam B emitted from the light projecting / receiving unit (4) enters the second reflecting member (6) and is reflected, and the reflected light beam B is reflected by the light projecting / receiving unit (4). ) Will return.
これに対し、投光/受光ユニット(4)は、光ビームの検知が中断されたとき、異物検知信号を生成し、制御ユニット(100)へ出力する。これに応じて、制御ユニット(100)は、両かごドア(2)(3)を閉じ動作から開き動作に反転させると共に、投光/受光ユニット(4)に光ビームの出射動作を停止させる。
又、上述の如く両かごドア(2)(3)が全開状態から閉じる過程でセーフティシューフレームが人や異物と衝突し、該セーフティシューフレームに力が作用したときに、制御ユニット(100)は、両かごドア(2)(3)を閉じ動作から開き動作に反転させると共に、投光/受光ユニット(4)に光ビームの出射動作を停止させる。 The light projecting / receiving unit (4) does not generate a foreign matter detection signal when a light beam is detected. Then, the control unit (100) is configured so that the car doors (2) and (3) are closed in the process of closing the car doors (2) and (3) from the fully open state to the fully closed state, unless a foreign object detection signal is generated by the light projecting / receiving unit (4). 2) Continue the closing operation of (3).
On the other hand, the light projecting / light receiving unit (4) generates a foreign object detection signal and outputs it to the control unit (100) when the detection of the light beam is interrupted. In response to this, the control unit (100) reverses the car doors (2) and (3) from the closing operation to the opening operation and stops the light projecting / receiving unit (4) from emitting the light beam.
As described above, when the car doors (2) and (3) are closed from the fully opened state, the safety shoe frame collides with a person or a foreign object, and when the force acts on the safety shoe frame, the control unit (100) The car doors (2) and (3) are reversed from the closing operation to the opening operation, and the light projecting / receiving unit (4) is stopped from emitting the light beam.
図11(a)(b)(c)の如く両かごドア(2)(3)が全開状態から全閉直前状態まで閉じていく過程で、光ビームBは徐々に紐Sに接近し、更に図12(a)(b)(c)の如く両かごドア(2)(3)が全閉直前状態から全閉状態まで閉じる過程で、光ビームBは紐Sを横切ることになる。このとき投光/受光ユニット(4)による光ビームの検知が中断するので、異物検知信号が生成される。 11 and 12 show that the car doors (2) and (3) are closed in a state where a string S is stretched between the inside of the car and the landing floor through the central part of the entrance of the car. Represents a series of operations.
In the process in which the car doors (2) and (3) are closed from the fully opened state to the state immediately before the fully closed state as shown in FIGS. 11 (a), (b), and (c), the light beam B gradually approaches the string S. As shown in FIGS. 12 (a), (b), and (c), the light beam B crosses the string S while the car doors (2) and (3) are closed from the state immediately before the fully closed state to the fully closed state. At this time, detection of the light beam by the light projecting / light receiving unit (4) is interrupted, so that a foreign object detection signal is generated.
図13(a)(b)(c)の如く両かごドア(2)(3)が全開状態から全閉直前状態まで閉じていく過程で、最初は紐Sが光ビームBと左側のかごドア(2)の間に位置しているが、戸閉動作の進行に伴って紐Sは光ビームBと交叉する位置まで移動し、その後、図14(a)(b)(c)の如く両かごドア(2)(3)が全閉直前状態から全閉状態まで閉じる過程で、光ビームBは紐Sの外側へ移行することになる。この過程で、光ビームBが紐Sを横切るとき、投光/受光ユニット(4)による光ビームの検知が中断するので、異物検知信号が生成される。 13 and 14 show an elevator in which a safety shoe frame (27) is arranged on the left car door (2), and the left car door (2) and the safety shoe frame (27) come into contact with the car. This shows a series of operations when the car doors (2) and (3) are closed in a state where the string S is stretched between the interior and the landing floor.
As shown in FIGS. 13A, 13B, and 13C, in the process in which the two
図15(a)(b)(c)の如く両かごドア(2)(3)が全開状態から全閉直前状態まで閉じていく過程で、最初は紐Sが光ビームBと左側のかごドア(2)の間に位置しているが、戸閉動作の進行に伴って紐Sは光ビームBと交叉する位置まで移動し、その後、図16(a)(b)(c)の如く両かごドア(2)(3)が全閉直前状態から全閉状態まで閉じる過程で、光ビームBは紐Sの外側へ移行することになる。この過程で、光ビームBが紐Sを横切るとき、投光/受光ユニット(4)による光ビームの検知が中断するので、異物検知信号が生成される。 15 and 16 show an elevator in which safety shoe frames (27) and (37) are arranged on the car doors (2) and (3), respectively, and the left car door (2) and the safety shoe frame (27). A series of operations when the car doors (2) and (3) are closed in a state where the string S is stretched between the inside of the car and the landing floor in contact with each other.
As shown in FIGS. 15 (a), (b) and (c), in the process of closing the two car doors (2) and (3) from the fully open state to the state immediately before the fully closed state, the string S is initially the light beam B and the left car door. Although it is located between (2), the string S moves to the position where it crosses the light beam B as the door closing operation proceeds, and then both the strings S as shown in FIGS. 16 (a), (b) and (c). In the process in which the car doors (2) and (3) are closed from the state immediately before the fully closed state to the fully closed state, the light beam B moves to the outside of the string S. In this process, when the light beam B crosses the string S, detection of the light beam by the light projecting / receiving unit (4) is interrupted, so that a foreign object detection signal is generated.
ステップS3にてノーと判断されたときは、ステップS4に移行して、通常の速度(高速)で戸閉動作を実行すると共に投光/受光ユニットによる光ビームの出射動作を実行した後、ステップS5にて異物が検知されたか否かを判断する。
ここで、異物検知信号が生成されたとき、或いはセーフティシューフレームに何らかの力が作用したときには、乗りかごの乗降口に乗降中の人や異物が存在するか、或いは人が光ビームの覗き込み動作を行なっているものと推定されるため、ステップS6に移行して、反転戸開きを実行すると共に投光/受光ユニットによる光ビームの出射動作を停止した後、ステップS1に戻って、戸開き完了で待機すると共に光ビームの出射停止状態を継続する。 When the door opening time expires and it is determined as YES in step S2, the process proceeds to step S3, and when the reverse door opening is repeated a predetermined number of times N or more by detection of a foreign object, or the door opening waiting time is predetermined. It is determined whether or not any of the cases where the time T is reached.
When it is determined NO in step S3, the process proceeds to step S4, the door closing operation is executed at a normal speed (high speed) and the light beam emitting operation by the light projecting / receiving unit is executed, and then the step is performed. In S5, it is determined whether or not a foreign object has been detected.
Here, when a foreign object detection signal is generated or when some force is applied to the safety shoe frame, there is a person or foreign object getting on or off the entrance of the car, or a person looks into the light beam. Therefore, the process proceeds to step S6 to execute the reverse door opening and stop the light beam emission operation by the light projecting / light receiving unit, and then returns to step S1 to complete the door opening. And the light beam emission stop state is continued.
ここで、異物検知信号が生成されないときには、ステップS12に移行して、戸閉終端位置検出装置から得られるオン/オフ信号に基づいて強制戸閉動作が完了したか否かを判断し、ノーと判断されたときは、ステップS13にて強制戸閉動作を継続した後、ステップS11に戻る。その後、強制戸閉動作が完了してステップS12にてイエスと判断されたときに、ステップS20に移行して、反転戸開きの回数をクリアすると共に通常の制御動作を再開する。これによって、乗りかごは走行を開始し得る状態となる。最後に、図18のステップS8に移行して、投光/受光ユニットによる光ビームの出射動作を停止して、上記一連の手続きを終了する。 Thereafter, in step S11, it is determined whether or not a foreign object has been detected by the light projecting / receiving unit during the forced door closing operation.
Here, when the foreign object detection signal is not generated, the process proceeds to step S12 to determine whether or not the forced door closing operation is completed based on the on / off signal obtained from the door closing terminal position detection device. When it is determined, after the forced door closing operation is continued in step S13, the process returns to step S11. Thereafter, when the forced door closing operation is completed and it is determined as YES in step S12, the process proceeds to step S20 to clear the number of times of reverse door opening and resume the normal control operation. As a result, the car is ready to start running. Finally, the process proceeds to step S8 in FIG. 18, the light beam emitting operation by the light projecting / light receiving unit is stopped, and the above series of procedures is terminated.
その後、戸閉動作中に異物検知信号が生成されたとき、或いはセーフティシューフレームに何らかの力が作用したときに、反転戸開きが実行されると共に投光/受光ユニット(4)からの光ビームの出射が停止される。これに対し、異物が検知されることなく戸閉動作が完了した場合には、その完了時点で投光/受光ユニット(4)からの光ビームの出射が停止される。
そして、異物の検知によって反転戸開きが所定回数N以上繰り返されたとき、或いは戸開き待機時間が所定時間Tに達したときには、強制戸閉動作が開始される旨が報知された後に強制戸閉動作が開始される。更に、この強制戸閉動作中に投光/受光ユニット(4)により異物が検知されたときには、強制戸閉動作の完了後に乗りかごの走行が開始される旨が報知され、その後、乗りかごの走行が開始される。 According to the above procedure, the emission of the light beam from the light projecting / receiving unit (4) is stopped during standby in the door open state, and the light from the light projecting / receiving unit (4) is started at the start of the door closing operation. Beam emission is started.
Thereafter, when a foreign object detection signal is generated during the door closing operation, or when some force acts on the safety shoe frame, the reverse door opening is executed and the light beam from the light projecting / receiving unit (4) is transmitted. The emission is stopped. On the other hand, when the door closing operation is completed without foreign matter being detected, emission of the light beam from the light projecting / light receiving unit (4) is stopped at the time of completion.
Then, when the reverse door opening is repeated a predetermined number of times N or more due to the detection of a foreign object, or when the door opening standby time reaches a predetermined time T, the forced door closing operation is notified after the notification that the forced door closing operation is started. Operation starts. Further, when a foreign object is detected by the light projecting / receiving unit (4) during the forced door closing operation, it is notified that the traveling of the car is started after the forced door closing operation is completed. Traveling starts.
又、戸閉動作中に異物が検知されたとき、反転戸開き動作が実行されることになるのであるが、このとき、投光/受光ユニット(4)からの光ビームの出射が停止される。これによって、反転戸開き動作中に光ビームが覗き込まれることを防止することが出来る。 In the elevator according to the present embodiment, since the emission of the light beam from the light projecting / receiving unit (4) is stopped during the door opening standby and the normal door opening operation, the door opening standby and the normal door opening operation are performed. It is possible to prevent the light beam from being looked into.
Further, when a foreign object is detected during the door closing operation, the reverse door opening operation is executed. At this time, the emission of the light beam from the light projecting / receiving unit (4) is stopped. . Thereby, it is possible to prevent the light beam from being looked into during the reverse door opening operation.
第1実施例のエレベータは、戸閉動作の開始時点で投光/受光ユニット(4)による光ビームの出射動作が開始されるものであるのに対し、本実施例のエレベータは、戸閉動作の開始後、両かごドア(2)(3)が所定の閉じ位置まで閉じたときに該出射動作が開始されるものである。本実施例のエレベータの全体構成及び電気的構成は、制御ユニットを除いて、第1実施例のエレベータと同じであるので説明を省略する。 Second Embodiment In the elevator of the first embodiment, the light beam emitting operation by the light projecting / receiving unit (4) is started at the start of the door closing operation, whereas the elevator of the present embodiment is After the door closing operation is started, when the car doors (2) and (3) are closed to a predetermined closing position, the emission operation is started. Since the overall configuration and electrical configuration of the elevator according to the present embodiment are the same as those of the elevator according to the first embodiment except for the control unit, description thereof will be omitted.
ステップS23にてノーと判断されたときは、ステップS24に移行して、通常の速度(高速)で戸閉動作を実行すると共に光ビームの出射停止状態を継続し、ステップS25では、異物が検知されたか否かを判断する。
ここで、セーフティシューフレームに何らかの力が作用したときには、乗りかごの乗降口に乗降中の人や異物が存在するものと推定されるため、ステップS26に移行して、反転戸開きを実行すると共に光ビームの出射停止状態を継続し、ステップS21に戻って、戸開き完了で待機すると共に光ビームの出射停止状態を継続する。 When the door opening time expires and it is determined YES in step S22, the process proceeds to step S23, and when the reverse door opening is repeated a predetermined number of times N or more due to the detection of a foreign object, or the door opening waiting time is It is determined whether or not any of the cases where the predetermined time T is reached.
When it is determined NO in step S23, the process proceeds to step S24, the door closing operation is executed at a normal speed (high speed), and the light beam emission stop state is continued. In step S25, a foreign object is detected. It is judged whether it was done.
Here, when any force is applied to the safety shoe frame, it is estimated that a person or a foreign object is getting on or off the entrance of the car. Therefore, the process proceeds to step S26 to perform the reverse door opening. The light beam emission stop state is continued, and the process returns to step S21 to wait for the door opening completion and continue the light beam emission stop state.
ここで、異物検知信号が生成されたとき、或いはセーフティシューフレームに何らかの力が作用したときには、乗りかごの乗降口に異物が存在するものと推定されるため、ステップS26に移行して、反転戸開きを実行すると共に投光/受光ユニットによる光ビームの出射動作を停止した後、ステップS21に戻って、戸開き完了で待機すると共に光ビームの出射停止状態を継続する。
一方、ステップS29にて異物が検知されなかったと判断されたときは、ステップS30に移行して、戸閉終端位置検出装置から得られるオン/オフ信号に基づいて戸閉動作が完了したか否かを判断し、ノーと判断されたときはステップS28に戻って、通常の速度での戸閉動作を継続すると共に光ビームの出射動作を継続する。その後、戸閉動作が完了してステップS30にてイエスと判断されたときは、ステップS31にて投光/受光ユニットによる光ビームの出射動作を停止して、一連の手続きを終了する。 Thereafter, when both the car doors reach the predetermined closing position and it is determined YES in step S27, the process proceeds to step S28, and the door closing operation at the normal speed is continued and the light projecting / receiving is continued. After performing the light beam emission operation by the unit, it is determined in step S29 whether or not a foreign object has been detected.
Here, when a foreign object detection signal is generated, or when some force is applied to the safety shoe frame, it is presumed that there is a foreign object at the entrance / exit of the car. After the opening is performed and the light beam emitting operation by the light projecting / receiving unit is stopped, the process returns to step S21 to wait for the door opening completion and continue the light beam emission stopped state.
On the other hand, when it is determined in step S29 that no foreign matter has been detected, the process proceeds to step S30, and whether or not the door closing operation has been completed based on the on / off signal obtained from the door closing terminal position detection device. If NO is determined, the process returns to step S28 to continue the door closing operation at a normal speed and the light beam emission operation. Thereafter, when the door closing operation is completed and it is determined YES in step S30, the light beam emission operation by the light projecting / light receiving unit is stopped in step S31, and the series of procedures is ended.
続いてステップS34では、ドア制御装置から得られるドア位置信号に基づいて両かごドアが上記所定の閉じ位置に到達したか否かを判断し、ノーと判断されたときはステップS33に戻って、強制戸閉動作を継続する。 If a person is mischievous or deliberately places some foreign matter at the entrance / exit, or if an on-failure that always generates a foreign matter detection signal has occurred in the light projecting / receiving unit, etc. Then, the process proceeds to step S32 in FIG. 21, and a notification that the door closing operation is to be started is made using the voice guidance system in the car or the display guidance system in the car or landing, and from the car door. Warning to leave. Next, in step S33, a forced door closing operation that forcibly closes the car door at a low speed regardless of whether or not a foreign object is detected by the light projecting / receiving unit is performed while a buzzer or the like is sounding. During this forced door closing operation, even if a foreign object detection signal is generated by the light projecting / receiving unit, the reverse door opening is not executed, and the reversal caused by the foreign object being detected by the light projecting / receiving unit. Door opening is disabled. On the other hand, when a foreign object is detected by the safety shoe frame, the reverse door opening is executed.
Subsequently, in step S34, it is determined whether or not both car doors have reached the predetermined closed position based on the door position signal obtained from the door control device. When it is determined NO, the process returns to step S33. Continue forced door closing.
ここで、異物検知信号が生成されないときには、ステップS37に移行して、戸閉終端位置検出装置から得られるオン/オフ信号に基づいて強制戸閉動作が完了したか否かを判断し、ノーと判断されたときはステップS38にて、強制戸閉動作を継続した後、ステップS36に戻る。その後、強制戸閉動作が完了してステップS37にてイエスと判断されたときに、ステップS45に移行して、反転戸開きの回数をクリアすると共に通常の制御動作を再開する。これによって、乗りかごは走行を開始し得る状態となる。最後に、図20のステップS31に移行して、投光/受光ユニットによる光ビームの出射動作を停止して、上記一連の手続きを終了する。 Thereafter, when both the car doors reach the predetermined closed position and it is determined YES in step S34, the process proceeds to step S35, and after the light beam emitting operation by the light projecting / receiving unit is started, In step S36, it is determined whether a foreign matter is detected by the light projecting / receiving unit during the forced door closing operation.
Here, when the foreign object detection signal is not generated, the process proceeds to step S37, where it is determined whether or not the forced door closing operation is completed based on the on / off signal obtained from the door closing terminal position detection device. When it is determined, in step S38, the forced door closing operation is continued, and then the process returns to step S36. Thereafter, when the forced door closing operation is completed and it is determined as YES in step S37, the process proceeds to step S45, where the number of times of reverse door opening is cleared and the normal control operation is resumed. As a result, the car is ready to start running. Finally, the process proceeds to step S31 in FIG. 20, the light beam emission operation by the light projecting / light receiving unit is stopped, and the above series of procedures is terminated.
又、両かごドア(2)(3)が前記所定の閉じ位置まで閉じるまでは、セーフティシューフレームに何らかの力が作用したときに、光ビームの出射停止状態を維持して反転戸開きが実行される。両かごドア(2)(3)が前記所定の閉じ位置まで閉じた後は、異物検知信号が生成されたとき、或いはセーフティシューフレームに何らかの力が作用したときに、反転戸開きが実行されると共に、投光/受光ユニット(4)からの光ビームの出射が停止される。これに対し、異物が検知されることなく戸閉動作が完了した場合には、その完了時点で投光/受光ユニット(4)からの光ビームの出射が停止される。
更に、異物の検知によって反転戸開きが所定回数N以上繰り返されたとき、或いは戸開き待機時間が所定時間Tに達したときには、強制戸閉動作が開始される旨が報知された後に強制戸閉動作が開始される。更に、この強制戸閉動作中に投光/受光ユニット(4)により異物が検知されたときには、強制戸閉動作の完了後に乗りかごの走行が開始される旨が報知され、その後、乗りかごの走行が開始される。 According to the above procedure, from the light projecting / receiving unit (4) during standby in the door open state and after the door closing operation is started until the car doors (2) (3) are closed to the predetermined closed position. The light beam emission from the light projecting / receiving unit (4) is started when the car doors (2) and (3) are closed to a predetermined closed position.
Until the car doors (2) and (3) are closed to the predetermined closing position, when some force is applied to the safety shoe frame, the light beam emission stop state is maintained and the reverse door opening is executed. The After the car doors (2) and (3) are closed to the predetermined closing position, when the foreign object detection signal is generated or when some force acts on the safety shoe frame, the reverse door opening is executed. At the same time, the emission of the light beam from the light projecting / receiving unit (4) is stopped. On the other hand, when the door closing operation is completed without foreign matter being detected, emission of the light beam from the light projecting / light receiving unit (4) is stopped at the time of completion.
Further, when the reverse door opening is repeated a predetermined number of times N or more due to the detection of a foreign object, or when the door opening standby time reaches a predetermined time T, a forced door closing operation is notified and then the forced door closing is started. Operation starts. Further, when a foreign object is detected by the light projecting / receiving unit (4) during the forced door closing operation, it is notified that the traveling of the car is started after the forced door closing operation is completed. Traveling starts.
又、戸閉動作中及び強制戸閉動作中は、両かごドア(2)(3)が前記所定の閉じ位置まで閉じたときに投光/受光ユニット(4)による光ビームの出射動作が開始されるので、光ビームの出射動作が開始された後に人が乗降口に頭や肩を入れて光ビームを覗き込むことは物理的に不可能であり、戸閉動作中に光ビームが覗き込まれることを確実に防止することが出来る。
更に、戸閉動作中に異物が検知されたとき、反転戸開き動作が実行されることになるのであるが、このとき、投光/受光ユニット(4)からの光ビームの出射が停止されるので、反転戸開き動作中に光ビームが覗き込まれることを防止することが出来る。 In the elevator according to the present embodiment, since the emission of the light beam from the light projecting / receiving unit (4) is stopped during the door opening standby and the normal door opening operation, the door opening standby and the normal door opening operation are performed. It is possible to prevent the light beam from being looked into.
During the door closing operation and the forced door closing operation, the light beam emitting operation by the light projecting / light receiving unit (4) starts when the car doors (2) (3) are closed to the predetermined closing position. Therefore, it is physically impossible for a person to put a head or shoulder into the entrance / exit and look into the light beam after the light beam emission operation is started, and the light beam looks into the door during the door closing operation. Can be surely prevented.
Further, when a foreign object is detected during the door closing operation, the reverse door opening operation is executed. At this time, the emission of the light beam from the light projecting / receiving unit (4) is stopped. Therefore, it is possible to prevent the light beam from being looked into during the reverse door opening operation.
本実施例のエレベータは、戸閉動作中のみならず戸開状態での待機中においても投光/受光ユニット(4)による異物の検知を行なうものである。本実施例のエレベータの全体構成及び電気的構成は、制御ユニットを除いて、第1実施例のエレベータと同じであるので説明を省略する。 Third Embodiment The elevator according to the present embodiment detects foreign matter by the light projecting / light receiving unit (4) not only during the door closing operation but also during the standby in the door open state. Since the overall configuration and electrical configuration of the elevator according to the present embodiment are the same as those of the elevator according to the first embodiment except for the control unit, description thereof will be omitted.
ここで、異物検知信号が生成されたとき、或いはセーフティシューフレームに何らかの力が作用したときには、乗りかごの乗降口に乗降中の人や異物が存在するか、或いは人が光ビームの覗き込み動作を行なっているものと推定されるため、ステップS58に移行して、反転戸開きを実行すると共に投光/受光ユニットによる光ビームの出射動作を停止した後、ステップS51に戻って、異物の検知によって反転戸開きを所定回数N以上繰り返したか否かの判断を行なう。 If it is determined NO in step S53, the process proceeds to step S54 to determine whether the door opening time has expired. If YES, the door opening standby time is set to the predetermined time T in step S55. When it is determined as NO, the process proceeds to step S56, and the door closing operation is performed at a normal speed (high speed) and the light beam emitting operation by the light projecting / receiving unit is performed. Thereafter, in step S57, it is determined whether or not a foreign object has been detected.
Here, when a foreign object detection signal is generated or when some force is applied to the safety shoe frame, there is a person or foreign object getting on or off the entrance of the car, or a person looks into the light beam. Therefore, the process proceeds to step S58 to perform reverse door opening and stop the light beam emission operation by the light projecting / light receiving unit, and then return to step S51 to detect the foreign matter. To determine whether or not the reverse door opening has been repeated a predetermined number of times N or more.
一方、戸開き待機時間が所定時間Tに達して図23のステップS64にてイエスと判断されたときは、図24のステップS67に移行する。 When a foreign object detection signal is generated while waiting in the door open state and it is determined yes in step S53, there is a foreign object at the entrance of the car or a person looks into the light beam. Since it is presumed to have been performed, the process proceeds to step S62 in FIG. 23, the door opening time is extended for several seconds, and the light beam emitting operation by the light projecting / receiving unit is stopped, and then in step S63. It is determined whether the door opening time has expired. If no, the same determination is repeated in step S63. Thereafter, when the door opening time expires and it is determined as YES in step S63, the process proceeds to step S64 to determine whether or not the door opening waiting time has reached the predetermined time T, and it is determined NO. In step S65, the light projecting / receiving unit performs a light beam emitting operation, and then in step S66, it is determined whether a foreign object is detected by the projecting / receiving unit. When the foreign object detection signal is generated here, it is estimated that the foreign object remains at the entrance / exit of the car or that the person continues to look into the light beam, so the process returns to step S62. Thus, while extending the door opening time and stopping the light beam emitting operation by the light projecting / receiving unit, when it is determined NO in step S66, the process proceeds to step S56 in FIG. The door closing operation is executed at a high speed, and the light beam emitting operation by the light projecting / receiving unit is continued.
On the other hand, when the door opening standby time reaches the predetermined time T and it is determined as YES in step S64 in FIG. 23, the process proceeds to step S67 in FIG.
その後、ステップS69では、強制戸閉動作中に投光/受光ユニットにより異物が検知されたか否かを判断する。
ここで、異物検知信号が生成されないときには、ステップS70に移行して、戸閉終端位置検出装置から得られるオン/オフ信号に基づいて強制戸閉動作が完了したか否かを判断し、ノーと判断されたときは、ステップS71にて強制戸閉動作を継続した後、ステップS69に戻る。その後、強制戸閉動作が完了してステップS70にてイエスと判断されたときに、ステップS78に移行して、反転戸開きの回数をクリアすると共に通常の制御動作を再開する。これによって、乗りかごは走行を開始し得る状態となる。最後に、図22のステップS60に移行して、投光/受光ユニットによる光ビームの出射動作を停止して、上記一連の手続きを終了する。 In step S67, a voice guidance system in the car or a display guidance system in the car or at the landing is used to notify the start of the door closing operation and to warn away from the car door. In step S68, a forced door closing operation forcibly closing the car door at a low speed regardless of whether or not a foreign object has been detected by the light projecting / receiving unit is performed while sounding a buzzer or the like. The light beam emission operation by the light receiving unit is started. During this forced door closing operation, even if a foreign object detection signal is generated by the light projecting / receiving unit, the reverse door opening is not executed, and the reversal caused by the foreign object being detected by the light projecting / receiving unit. Door opening is disabled. On the other hand, when a foreign object is detected by the safety shoe frame, the reverse door opening is executed.
Thereafter, in step S69, it is determined whether or not a foreign object has been detected by the light projecting / receiving unit during the forced door closing operation.
Here, when the foreign object detection signal is not generated, the process proceeds to step S70, where it is determined whether or not the forced door closing operation is completed based on the on / off signal obtained from the door closing terminal position detection device. If it is determined, after the forced door closing operation is continued in step S71, the process returns to step S69. Thereafter, when the forced door closing operation is completed and it is determined as YES in step S70, the process proceeds to step S78 to clear the number of times of reverse door opening and resume the normal control operation. As a result, the car is ready to start running. Finally, the process proceeds to step S60 in FIG. 22, the light beam emitting operation by the light projecting / receiving unit is stopped, and the above series of procedures is terminated.
又、戸閉動作中においても投光/受光ユニット(4)による光ビームの出射動作が実行され、戸閉動作中に異物検知信号が生成されたとき、或いはセーフティシューフレームに何らかの力が作用したときに、反転戸開きが実行されると共に投光/受光ユニット(4)からの光ビームの出射が停止される。これに対し、異物が検知されることなく戸閉動作が完了した場合には、その完了時点で投光/受光ユニット(4)からの光ビームの出射が停止される。
更に、異物の検知によって反転戸開きが所定回数N以上繰り返されたとき、或いは戸開き待機時間が所定時間Tに達したときには、強制戸閉動作が開始される旨が報知された後に強制戸閉動作が開始される。更に、この強制戸閉動作中に投光/受光ユニット(4)により異物が検知されたときには、強制戸閉動作の完了後に乗りかごの走行が開始される旨が報知され、その後、乗りかごの走行が開始される。 According to the above procedure, when the light beam emitting operation is performed by the light projecting / receiving unit (4) during standby in the door open state, and a foreign object detection signal is generated during standby in the door open state, The door opening time is extended for several seconds and the emission of the light beam from the light projecting / receiving unit (4) is stopped. Thereafter, when the extended door opening time has expired, the light beam emitting operation by the light projecting / receiving unit (4) is resumed, and the foreign object detection operation is resumed. At that time, the foreign object detection signal is generated again. If there is a foreign object remaining at the entrance or exit, it is presumed that the person continues to look into the light beam. The emission of the light beam from the unit (4) is stopped. On the other hand, when the foreign object detection signal is not generated when the foreign object detection operation is resumed, the door closing operation is started and the light beam emitting operation by the light projecting / light receiving unit (4) is continued. .
Also, the light projecting / receiving unit (4) emits the light beam during the door closing operation, and when a foreign object detection signal is generated during the door closing operation, or some force is applied to the safety shoe frame. Sometimes, reverse door opening is performed and emission of the light beam from the light projecting / receiving unit (4) is stopped. On the other hand, when the door closing operation is completed without foreign matter being detected, emission of the light beam from the light projecting / light receiving unit (4) is stopped at the time of completion.
Further, when the reverse door opening is repeated a predetermined number of times N or more due to the detection of a foreign object, or when the door opening standby time reaches a predetermined time T, a forced door closing operation is notified and then the forced door closing is started. Operation starts. Further, when a foreign object is detected by the light projecting / receiving unit (4) during the forced door closing operation, it is notified that the traveling of the car is started after the forced door closing operation is completed. Traveling starts.
又、戸閉動作中に異物が検知されたときに反転戸開き動作が実行されるのであるが、このとき、投光/受光ユニット(4)からの光ビームの出射が停止される。これによって、反転戸開き動作中に光ビームが覗き込まれることを防止することが出来る。又、第1実施例と同様に、戸閉動作中に人が乗降口に頭や肩を入れて投光/受光ユニット(4)から出射される光ビームを覗き込もうとした場合には、反転戸開き動作が実行されると共に投光/受光ユニット(4)からの光ビームの出射が停止されることになるので、戸閉動作中に光ビームが覗き込まれることを防止することが出来る。
更に、通常戸開き動作中には投光/受光ユニット(4)からの光ビームの出射が停止されるので、通常戸開き動作中に光ビームが覗き込まれることを防止することが出来る。 In the elevator according to the present embodiment, since the emission of the light beam from the light projecting / receiving unit (4) is stopped when a foreign object is detected during the door opening standby, a person can enter the doorway during the door opening standby. When a head or shoulder is inserted and an attempt is made to look into the light beam emitted from the light projecting / receiving unit (4), the human head or shoulder is detected as a foreign object. As a result, the light projecting / receiving unit ( The emission of the light beam from 4) is stopped. Accordingly, it is impossible to look into the light beam emitted from the light projecting / receiving unit (4) during the door opening standby, and it is possible to prevent the light beam from being looked into during the door opening standby. In addition, the door opening time is extended when a foreign object is detected, so if a person tries to look into the light beam with his head or shoulder in the entrance just before the door closing operation starts, It is possible to prevent the car doors (2) and (3) from colliding with a person's head and shoulders.
Further, when a foreign object is detected during the door closing operation, the reverse door opening operation is executed. At this time, the emission of the light beam from the light projecting / light receiving unit (4) is stopped. Thereby, it is possible to prevent the light beam from being looked into during the reverse door opening operation. Similarly to the first embodiment, when a person tries to look into the light beam emitted from the light projecting / receiving unit (4) with his / her head and shoulders in the doorway during the door closing operation, Since the reverse door opening operation is performed and the emission of the light beam from the light projecting / receiving unit (4) is stopped, it is possible to prevent the light beam from being looked into during the door closing operation. .
Further, since the emission of the light beam from the light projecting / receiving unit (4) is stopped during the normal door opening operation, it is possible to prevent the light beam from being looked into during the normal door opening operation.
例えば、上記第1実施例乃至第3実施例においては、本発明をセンターオープンタイプのエレベータの安全装置に実施しているが、図25に示す如く戸当たりフレーム(12)に対して接近離間する方向に移動して乗降口を開閉する少なくとも1つのかごドア(23)を具えたサイドオープンタイプのエレベータの安全装置に実施することも可能である。この種のエレベータの安全装置においては、例えば図示の如く、かごドア(23)には、戸当たりフレーム(12)と当接すべき閉方向端面(23a)から戸当たりフレーム(12)側へ所定距離だけ離れた位置を上下に延びる直線上の上端位置に、下方へ向けて投光/受光ユニット(4)が配備される一方、前記直線上の下端位置に、上方へ向けて第1反射部材(5)が配備されている。 In addition, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim.
For example, in the first to third embodiments, the present invention is applied to the safety device for the center open type elevator, but as shown in FIG. 25, the door is approached and separated from the door stop frame (12). It is also possible to implement in a side open type elevator safety device having at least one car door (23) that moves in the direction to open and close the entrance. In this type of elevator safety device, for example, as shown in the figure, the car door (23) has a predetermined direction from the closing end surface (23a) to be in contact with the door stop frame (12) to the door stop frame (12) side. The light projecting / receiving unit (4) is disposed downward at the upper end position on the straight line extending vertically from the position separated by the distance, while the first reflecting member is directed upward at the lower end position on the straight line. (5) is deployed.
又、本発明は、図27に示す如く乗降口の上方に配備されたフレーム(80)に投光/受光ユニット(4)が配備され、一対のかごドア(2)(3)の内、一方のかごドア(3)に反射部材(5)が配備されたエレベータの安全装置に実施することも可能である。この種のエレベータの安全装置においては、例えば図示の如く、フレーム(80)には、一対のかごドア(2)(3)が全閉状態にて互いに当接する当接位置を上下に延びる直線上の位置に下方へ向けて投光/受光ユニット(4)が配備され、一方のかごドア(3)には、他方のかごドア(2)と当接すべき閉方向端面(3a)の下端位置に上方へ向けて反射部材(5)が配備されている。 Further, according to the present invention, as shown in FIG. 26, a light projecting / receiving unit (4) and a reflecting member (4) are respectively attached to a frame (80) disposed above the entrance and exit and a sill (8) disposed below the entrance. It is also possible to implement it in an elevator safety device provided with 5). In this type of elevator safety device, for example, as shown in the drawing, the frame (80) is positioned at a linear position extending vertically from the contact position where the pair of car doors (2) and (3) contact each other in the fully closed state. ) Is provided with a light projecting / receiving unit (4) downward, while a sill (8) is provided with a reflecting member (5) upward.
Further, according to the present invention, as shown in FIG. 27, the light projecting / receiving unit (4) is disposed in the frame (80) disposed above the entrance and exit, and one of the pair of car doors (2) and (3). It can also be implemented in an elevator safety device in which the car door (3) is provided with a reflecting member (5). In this type of elevator safety device, for example, as shown in the figure, the frame (80) has a straight line extending up and down at the contact positions where the pair of car doors (2) and (3) contact each other in the fully closed state. The light projecting / receiving unit (4) is arranged downward at the position of one of the car doors (3), and the lower end position (3a) of the closing direction end surface (3a) to be in contact with the other car door (2) A reflecting member (5) is arranged upward.
更に、本発明は、上記投光/受光ユニット(4)と共に、乗降口の全域或いは略全域を横切る多数本の光ビームを出射し、それらの光ビームの一部でも遮られたときに異物検知信号を生成する多光軸センサを具えたエレベータの安全装置に実施することも可能である。例えば図18及び図19に示す制御手続きを採用したエレベータにおいては、戸閉動作の開始直後に人が光ビームを覗き込もうとした場合、乗降口に頭や肩を入れた瞬間に頭や肩が異物として検知されて光ビームの出射が停止されることになるので、戸閉動作中における光ビームの覗き込みが確実に防止されることになる。又、図22乃至図24に示す制御手続きを採用したエレベータにおいても、同様に、戸開待機中及び戸閉動作中における光ビームの覗き込みが確実に防止されることになる。
更に又、本発明は、例えば乗降口の上方に投光器が配備され、下方に受光器が配備されたエレベータの安全装置の如く、投光器から出射された光ビームがその進路に異物が存在しない限り直接に受光器に入射することとなるエレベータの安全装置に実施することも可能である。 In the above embodiment, the present invention is applied to an elevator safety device that detects a foreign object using a light beam that traverses the entrance and exit in the vertical direction, but using a light beam that traverses in the horizontal direction. It can also be implemented in an elevator safety device that detects foreign matter.
Furthermore, the present invention, together with the light projecting / receiving unit (4), emits a large number of light beams that traverse the entire area of the entrance / exit or substantially the entire area, and detects a foreign object when a part of the light beams is blocked. It can also be implemented in an elevator safety device with a multi-optical axis sensor that generates signals. For example, in an elevator that employs the control procedure shown in FIGS. 18 and 19, when a person tries to look into the light beam immediately after the start of the door closing operation, the head or shoulder is inserted at the moment the head or shoulder is inserted into the entrance / exit. Is detected as a foreign object and the emission of the light beam is stopped, so that the light beam can be reliably prevented from being looked into during the door closing operation. Similarly, in an elevator that employs the control procedure shown in FIGS. 22 to 24, the light beam can be reliably prevented from being looked into during the door opening standby and the door closing operation.
Furthermore, the present invention can be applied directly to a light beam emitted from the projector as long as there is no foreign object in its path, such as an elevator safety device in which a projector is provided above the entrance and exit and a light receiver is provided below. It is also possible to implement it in an elevator safety device that will enter the light receiver.
(2) かごドア
(2a) 閉方向端面
(3) かごドア
(3a) 閉方向端面
(30) 収容空間
(4) 投光/受光ユニット
(5) 第1反射部材
(6) 第2反射部材
(7) 清掃具
(8) 敷居
(9) 異物侵入防止部材
(100) 制御ユニット
B 光ビーム
S 紐 (1) Rail
(2) Car door
(2a) End face in the closing direction
(3) Car door
(3a) End face in the closing direction
(30) Containment space
(4) Emitting / receiving unit
(5) First reflecting member
(6) Second reflecting member
(7) Cleaning tool
(8) threshold
(9) Foreign matter intrusion prevention member
(100) Control unit B Light beam S String
Claims (22)
- 互いに接近離間する方向に移動して乗降口を開閉する一対のかごドアを具えたエレベータの安全装置において、乗降口を横切る光ビームを出射する投光手段と、投光手段から出射された光ビームを検知する受光手段と、受光手段による光ビームの検知が中断されたときに異物検知信号を生成する異物検知手段と、両かごドアの開閉動作及び前記投光手段による光ビームの出射動作を制御する制御手段とを具えており、該制御手段は、両かごドアの全開状態では前記投光手段に出射動作を停止させ、両かごドアの閉じ動作の開始時点で或いは両かごドアの閉じ動作中に前記投光手段に出射動作を開始させることを特徴とするエレベータの安全装置。 In an elevator safety device having a pair of car doors that move in a direction approaching and separating from each other to open and close the entrance / exit, a light projecting means for emitting a light beam crossing the entrance / exit, and a light beam emitted from the light projecting means A light detecting means for detecting the light, a foreign object detecting means for generating a foreign object detection signal when the detection of the light beam by the light receiving means is interrupted, and the opening / closing operation of the car doors and the light beam emitting operation by the light projecting means. And control means for stopping the light projecting means when the car doors are fully opened, and at the time of starting the car door closing operation or during the car door closing operation. An elevator safety device characterized in that the light projecting means starts an emission operation.
- 互いに接近離間する方向に移動して乗降口を開閉する一対のかごドアを具えたエレベータの安全装置において、乗降口を横切る光ビームを出射する投光手段と、投光手段から出射された光ビームを検知する受光手段と、受光手段による光ビームの検知が中断されたときに異物検知信号を生成する異物検知手段と、両かごドアが所定の閉じ位置まで閉じたことを検知する閉じ位置検知手段と、両かごドアの開閉動作及び前記投光手段による光ビームの出射動作を制御する制御手段とを具えており、該制御手段は、両かごドアの全開状態と両かごドアの閉じ動作が開始されてから前記閉じ位置検知手段により両かごドアが前記所定の閉じ位置まで閉じたことが検知されるまでは前記投光手段に出射動作を停止させ、前記閉じ位置検知手段により両かごドアが前記所定の閉じ位置まで閉じたことが検知されたときに前記投光手段に出射動作を開始させることを特徴とするエレベータの安全装置。 In an elevator safety device having a pair of car doors that move in a direction approaching and separating from each other to open and close the entrance / exit, a light projecting means for emitting a light beam crossing the entrance / exit, and a light beam emitted from the light projecting means A light receiving means for detecting a foreign matter, a foreign matter detecting means for generating a foreign matter detection signal when the detection of the light beam by the light receiving means is interrupted, and a closed position detecting means for detecting that both car doors are closed to a predetermined closed position. And a control means for controlling the opening / closing operation of the car doors and the light beam emitting operation by the light projecting means. The control means starts the fully open state of the car doors and the closing operation of the car doors. Until the closing position detecting means detects that both car doors are closed to the predetermined closing position, the light projecting means stops the emission operation, and the closing position detecting means Safety device for an elevator, characterized in said that to start the emission operation in the light projecting means when the car door is closed to the predetermined closed position is detected.
- 前記制御手段は、両かごドアが全閉位置から開く通常開き動作中は前記投光手段に出射動作を停止させる請求項1又は請求項2に記載のエレベータの安全装置。 3. The elevator safety device according to claim 1, wherein the control means causes the light projecting means to stop the emission operation during a normal opening operation in which both car doors are opened from the fully closed position.
- 前記制御手段は、両かごドアが閉じる過程で前記異物検知手段により異物検知信号が生成されたときに両かごドアを閉じ動作から開き動作に反転させ、両かごドアの反転開き動作中は前記投光手段に出射動作を停止させる請求項1乃至請求項3の何れかに記載のエレベータの安全装置。 The control means reverses both the car doors from the closing operation to the opening operation when a foreign object detection signal is generated by the foreign object detection means in the process of closing both the car doors, and the throwing operation is performed during the reverse opening operation of the car doors. The elevator safety device according to any one of claims 1 to 3, wherein the light means stops the emission operation.
- 互いに接近離間する方向に移動して乗降口を開閉する一対のかごドアを具えたエレベータの安全装置において、乗降口を横切る光ビームを出射する投光手段と、投光手段から出射された光ビームを検知する受光手段と、受光手段による光ビームの検知が中断されたときに異物検知信号を生成する異物検知手段と、両かごドアの開閉動作及び前記投光手段による光ビームの出射動作を制御する制御手段とを具えており、該制御手段は、両かごドアの全開状態で前記投光手段に出射動作を実行させ、該状態で前記異物検知手段により異物検知信号が生成されたときに前記投光手段に出射動作を停止させることを特徴とするエレベータの安全装置。 In an elevator safety device having a pair of car doors that move in a direction approaching and separating from each other to open and close the entrance / exit, a light projecting means for emitting a light beam crossing the entrance / exit, and a light beam emitted from the light projecting means A light detecting means for detecting the light, a foreign object detecting means for generating a foreign object detection signal when the detection of the light beam by the light receiving means is interrupted, and the opening / closing operation of the car doors and the light beam emitting operation by the light projecting means. And control means for causing the light projecting means to perform an emission operation in a fully open state of both car doors, and when the foreign object detection signal is generated by the foreign object detection means in the state, the control means An elevator safety device characterized in that the light projecting means stops the emission operation.
- 前記制御手段は、両かごドアの全開状態で前記異物検知手段により異物検知信号が生成されたとき、両かごドアを全開状態に維持すべき時間を延長する請求項5に記載のエレベータの安全装置。 6. The elevator safety device according to claim 5, wherein the control means extends a time for maintaining both the car doors in a fully open state when a foreign object detection signal is generated by the foreign object detection means in a state in which the car doors are fully opened. .
- 前記制御手段は、両かごドアの全開状態で前記投光手段に出射動作を停止させた後、両かごドアを全開状態に維持すべき時間が満了した時点で前記投光手段に出射動作を開始させ、前記異物検知手段により異物検知信号が生成されたときは、前記投光手段に出射動作を停止させると共に両かごドアを全開状態に維持すべき時間を延長する一方、異物検知信号が生成されないときは、両かごドアの閉じ動作を開始する請求項5又は請求項6に記載のエレベータの安全装置。 The control means starts the emission operation to the light projecting means when the time for keeping both the car doors in the fully open state expires after the light emission means stops the light emission means in the fully open state of the car doors. When the foreign matter detection signal is generated by the foreign matter detection means, the light projection means stops the emission operation and extends the time for keeping both car doors fully open, while the foreign matter detection signal is not generated. The elevator safety device according to claim 5 or 6, wherein a closing operation of both car doors is started.
- 前記制御手段は、両かごドアが全閉位置から開く通常開き動作中は前記投光手段に出射動作を停止させる請求項5乃至請求項7の何れかに記載のエレベータの安全装置。 The elevator safety device according to any one of claims 5 to 7, wherein the control means causes the light projecting means to stop an emission operation during a normal opening operation in which both car doors are opened from a fully closed position.
- 前記制御手段は、両かごドアの閉じ動作中に前記投光手段に出射動作を実行させ、両かごドアが閉じる過程で前記異物検知手段により異物検知信号が生成されたときに両かごドアを閉じ動作から開き動作に反転させ、両かごドアの反転開き動作中は前記投光手段に出射動作を停止させる請求項5乃至請求項8の何れかに記載のエレベータの安全装置。 The control means causes the light projecting means to perform an emission operation during the closing operation of the car doors, and closes the car doors when a foreign object detection signal is generated by the foreign object detection means in the process of closing the car doors. The elevator safety device according to any one of claims 5 to 8, wherein the operation is reversed from an operation to an opening operation, and the light projecting means is stopped during the reversing opening operation of both car doors.
- 前記制御手段は、
前記異物検知手段による異物検知信号の生成の有無に拘わらず強制的に両かごドアを閉じる強制戸閉め動作を実行する強制戸閉め手段と、
前記強制戸閉め手段による強制戸閉め動作の実行前に、或いは該強制戸閉め動作の実行中に、該強制戸閉め動作の実行を報知する報知手段
とを具えている請求項1乃至請求項9の何れかに記載のエレベータの安全装置。 The control means includes
Forced door closing means for forcibly closing the car doors regardless of whether or not a foreign object detection signal is generated by the foreign object detection means;
10. An informing means for notifying execution of the forced door closing operation before or during execution of the forced door closing operation by the forced door closing means. The elevator safety device according to any one of the above. - 前記制御手段は更に、
前記強制戸閉め手段による強制戸閉め動作の完了後に乗りかごの走行を開始させる乗りかご制御手段と、
前記強制戸閉め手段による強制戸閉め動作の実行中に前記異物検知手段により異物検知信号が生成された場合に、前記乗りかご制御手段により乗りかごの走行が開始される前に乗りかごの走行開始を報知する第2の報知手段
とを具えている請求項10に記載のエレベータの安全装置。 The control means further includes
Car control means for starting travel of the car after completion of the forced door closing operation by the forced door closing means;
When the foreign object detection signal is generated by the foreign object detection means during execution of the forced door closing operation by the forced door closing means, the traveling start of the car is started before the traveling of the car is started by the car control means. The elevator safety device according to claim 10, further comprising: second notification means for notifying. - 戸当たりフレームに対して接近離間する方向に移動して乗降口を開閉する少なくとも1つのかごドアを具えたエレベータの安全装置において、乗降口を横切る光ビームを出射する投光手段と、投光手段から出射された光ビームを検知する受光手段と、受光手段による光ビームの検知が中断されたときに異物検知信号を生成する異物検知手段と、前記かごドアの開閉動作及び前記投光手段による光ビームの出射動作を制御する制御手段とを具えており、該制御手段は、前記かごドアの全開状態では前記投光手段に出射動作を停止させ、前記かごドアの閉じ動作の開始時点で或いは前記かごドアの閉じ動作中に前記投光手段に出射動作を開始させることを特徴とするエレベータの安全装置。 In an elevator safety apparatus having at least one car door that opens and closes a doorway by moving in a direction approaching and separating from a door-to-door frame, a light projecting unit that emits a light beam across the doorway, and a light projecting unit A light receiving means for detecting the light beam emitted from the light source, a foreign object detecting means for generating a foreign object detection signal when the detection of the light beam by the light receiving means is interrupted, and an opening / closing operation of the car door and the light by the light projecting means. Control means for controlling the beam emitting operation, and the control means stops the light projecting means in the fully open state of the car door, and at the time of starting the closing operation of the car door or An elevator safety device characterized in that the light projecting means starts an emission operation during a car door closing operation.
- 戸当たりフレームに対して接近離間する方向に移動して乗降口を開閉する少なくとも1つのかごドアを具えたエレベータの安全装置において、乗降口を横切る光ビームを出射する投光手段と、投光手段から出射された光ビームを検知する受光手段と、受光手段による光ビームの検知が中断されたときに異物検知信号を生成する異物検知手段と、前記かごドアが所定の閉じ位置まで閉じたことを検知する閉じ位置検知手段と、前記かごドアの開閉動作及び前記投光手段による光ビームの出射動作を制御する制御手段とを具えており、該制御手段は、前記かごドアの全開状態と前記かごドアの閉じ動作が開始されてから前記閉じ位置検知手段により前記かごドアが前記所定の閉じ位置まで閉じたことが検知されるまでは前記投光手段に出射動作を停止させ、前記閉じ位置検知手段により前記かごドアが前記所定の閉じ位置まで閉じたことが検知されたときに前記投光手段に出射動作を開始させることを特徴とするエレベータの安全装置。 In an elevator safety apparatus having at least one car door that opens and closes a doorway by moving in a direction approaching and separating from a door-to-door frame, a light projecting unit that emits a light beam across the doorway, and a light projecting unit A light receiving means for detecting a light beam emitted from the light source, a foreign object detection means for generating a foreign object detection signal when detection of the light beam by the light receiving means is interrupted, and that the car door is closed to a predetermined closed position. A closed position detecting means for detecting; and a control means for controlling an opening / closing operation of the car door and an emission operation of the light beam by the light projecting means. The control means includes a fully open state of the car door and the car. After the door closing operation is started, until the closing position detecting unit detects that the car door is closed to the predetermined closing position, the light projecting unit emits the light. Is stopped, the safety device for an elevator in which the car door by the closed position detecting means and wherein said to initiate the emission operation in the light projecting means when it is detected that the closed to the predetermined closed position.
- 前記制御手段は、前記かごドアが全閉位置から開く通常開き動作中は前記投光手段に出射動作を停止させる請求項12又は請求項13に記載のエレベータの安全装置。 The elevator safety device according to claim 12 or 13, wherein the control means causes the light projecting means to stop an emission operation during a normal opening operation in which the car door is opened from a fully closed position.
- 前記制御手段は、前記かごドアが閉じる過程で前記異物検知手段により異物検知信号が生成されたときに前記かごドアを閉じ動作から開き動作に反転させ、前記かごドアの反転開き動作中は前記投光手段に出射動作を停止させる請求項12乃至請求項14の何れかに記載のエレベータの安全装置。 The control means reverses the car door from a closing operation to an opening operation when a foreign object detection signal is generated by the foreign object detection means in the process of closing the car door, and the throwing operation is performed during the reversal opening operation of the car door. The elevator safety device according to any one of claims 12 to 14, wherein the light means stops the emission operation.
- 戸当たりフレームに対して接近離間する方向に移動して乗降口を開閉する少なくとも1つのかごドアを具えたエレベータの安全装置において、乗降口を横切る光ビームを出射する投光手段と、投光手段から出射された光ビームを検知する受光手段と、受光手段による光ビームの検知が中断されたときに異物検知信号を生成する異物検知手段と、前記かごドアの開閉動作及び前記投光手段による光ビームの出射動作を制御する制御手段とを具えており、該制御手段は、前記かごドアの全開状態で前記投光手段に出射動作を実行させ、該状態で前記異物検知手段により異物検知信号が生成されたときに前記投光手段に出射動作を停止させることを特徴とするエレベータの安全装置。 In an elevator safety apparatus having at least one car door that opens and closes a doorway by moving in a direction approaching and separating from a door-to-door frame, a light projecting unit that emits a light beam across the doorway, and a light projecting unit A light receiving means for detecting the light beam emitted from the light source, a foreign object detecting means for generating a foreign object detection signal when the detection of the light beam by the light receiving means is interrupted, and an opening / closing operation of the car door and the light by the light projecting means. Control means for controlling the beam emission operation. The control means causes the light projecting means to execute the emission operation in the fully opened state of the car door, and in this state, the foreign object detection signal is output by the foreign object detection means. An elevator safety device characterized in that when it is generated, the light projecting means stops the emission operation.
- 前記制御手段は、前記かごドアの全開状態で前記異物検知手段により異物検知信号が生成されたとき、前記かごドアを全開状態に維持すべき時間を延長する請求項16に記載のエレベータの安全装置。 17. The elevator safety device according to claim 16, wherein the control means extends a time for maintaining the car door in a fully open state when a foreign object detection signal is generated by the foreign object detection means in the fully open state of the car door. .
- 前記制御手段は、前記かごドアの全開状態で前記投光手段に出射動作を停止させた後、前記かごドアを全開状態に維持すべき時間が満了した時点で前記投光手段に出射動作を開始させ、前記異物検知手段により異物検知信号が生成されたときは、前記投光手段に出射動作を停止させると共に前記かごドアを全開状態に維持すべき時間を延長する一方、異物検知信号が生成されないときは、前記かごドアの閉じ動作を開始する請求項16又は請求項17に記載のエレベータの安全装置。 The control means stops the light projecting means in the fully open state of the car door, and then starts the light emitting means at the time when the time for keeping the car door in the fully open state has expired. When the foreign matter detection signal is generated by the foreign matter detection means, the light projection means stops the emission operation and extends the time for keeping the car door fully open, while the foreign matter detection signal is not generated. 18. The elevator safety device according to claim 16 or 17, wherein a closing operation of the car door is started.
- 前記制御手段は、前記かごドアが全閉位置から開く通常開き動作中は前記投光手段に出射動作を停止させる請求項16乃至請求項18の何れかに記載のエレベータの安全装置。 The elevator safety device according to any one of claims 16 to 18, wherein the control means causes the light projecting means to stop an emission operation during a normal opening operation in which the car door is opened from a fully closed position.
- 前記制御手段は、前記かごドアの閉じ動作中に前記投光手段に出射動作を実行させ、前記かごドアが閉じる過程で前記異物検知手段により異物検知信号が生成されたときに前記かごドアを閉じ動作から開き動作に反転させ、前記かごドアの反転開き動作中は前記投光手段に出射動作を停止させる請求項16乃至請求項19の何れかに記載のエレベータの安全装置。 The control means causes the light projecting means to execute an emission operation during the closing operation of the car door, and closes the car door when a foreign object detection signal is generated by the foreign object detection means in the process of closing the car door. The elevator safety device according to any one of claims 16 to 19, wherein the elevator operation is reversed to an opening operation, and the light projecting means is stopped during the reversing opening operation of the car door.
- 前記制御手段は、
前記異物検知手段による異物検知信号の生成の有無に拘わらず強制的に前記かごドアを閉じる強制戸閉め動作を実行する強制戸閉め手段と、
前記強制戸閉め手段による強制戸閉め動作の実行前に、或いは該強制戸閉め動作の実行中に、該強制戸閉め動作の実行を報知する報知手段
とを具えている請求項12乃至請求項20の何れかに記載のエレベータの安全装置。 The control means includes
Forced door closing means for forcibly closing the car door regardless of whether a foreign object detection signal is generated by the foreign object detection means;
21. An informing means for notifying execution of the forced door closing operation before or during execution of the forced door closing operation by the forced door closing means. The elevator safety device according to any one of the above. - 前記制御手段は更に、
前記強制戸閉め手段による強制戸閉め動作の完了後に乗りかごの走行を開始させる乗りかご制御手段と、
前記強制戸閉め手段による強制戸閉め動作の実行中に前記異物検知手段により異物検知信号が生成された場合に、前記乗りかご制御手段により乗りかごの走行が開始される前に乗りかごの走行開始を報知する第2の報知手段
とを具えている請求項21に記載のエレベータの安全装置。 The control means further includes
Car control means for starting travel of the car after completion of the forced door closing operation by the forced door closing means;
When the foreign object detection signal is generated by the foreign object detection means during execution of the forced door closing operation by the forced door closing means, the traveling start of the car is started before the traveling of the car is started by the car control means. The elevator safety device according to claim 21, further comprising: second notification means for notifying.
Priority Applications (7)
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CN200980141582.2A CN102186758B (en) | 2008-10-20 | 2009-09-18 | The safety device of elevator |
EP09821901.7A EP2347987B1 (en) | 2008-10-20 | 2009-09-18 | Elevator safety device |
KR1020117008848A KR101244969B1 (en) | 2008-10-20 | 2009-09-18 | Elevator safety device |
JP2010534758A JP5321597B2 (en) | 2008-10-20 | 2009-09-18 | Elevator safety device |
CA2741033A CA2741033C (en) | 2008-10-20 | 2009-09-18 | Elevator safety device |
US13/125,119 US8672098B2 (en) | 2008-10-20 | 2009-09-18 | Elevator safety device with foreign matter detection using a light beam |
HK11112058.1A HK1157720A1 (en) | 2008-10-20 | 2011-11-08 | Elevator safety device |
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JP2008-270201 | 2008-10-20 | ||
JP2008270201 | 2008-10-20 |
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US (1) | US8672098B2 (en) |
EP (1) | EP2347987B1 (en) |
JP (1) | JP5321597B2 (en) |
KR (1) | KR101244969B1 (en) |
CN (1) | CN102186758B (en) |
CA (1) | CA2741033C (en) |
HK (1) | HK1157720A1 (en) |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2014094803A (en) * | 2012-11-09 | 2014-05-22 | Fujitec Co Ltd | Elevator device |
JP2015034093A (en) * | 2013-07-08 | 2015-02-19 | 三菱電機株式会社 | String-like object detecting device and elevator system |
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JP2015034093A (en) * | 2013-07-08 | 2015-02-19 | 三菱電機株式会社 | String-like object detecting device and elevator system |
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Also Published As
Publication number | Publication date |
---|---|
KR101244969B1 (en) | 2013-03-18 |
CA2741033A1 (en) | 2010-04-29 |
CN102186758B (en) | 2015-07-29 |
TWI372720B (en) | 2012-09-21 |
EP2347987A4 (en) | 2013-04-10 |
US8672098B2 (en) | 2014-03-18 |
US20110192684A1 (en) | 2011-08-11 |
KR20110076943A (en) | 2011-07-06 |
JP5321597B2 (en) | 2013-10-23 |
TW201024200A (en) | 2010-07-01 |
JPWO2010047202A1 (en) | 2012-03-22 |
EP2347987A1 (en) | 2011-07-27 |
CN102186758A (en) | 2011-09-14 |
CA2741033C (en) | 2014-01-14 |
HK1157720A1 (en) | 2012-07-06 |
EP2347987B1 (en) | 2013-11-13 |
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